• Jeffrey Mining Machinery Company Home Facebook

    Jeffrey Mining Machinery Company, Columbus. 346 likes · 29 talking about this · 14 were here. The continuous search for Jeffrey employees goes on, along with the preserving of the Jeffrey Mining

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  • Home The Jeffrey Company

    In 1876 Joseph A. Jeffrey and others formed a partnership to build the world’s first coal mining machines. That business eventually became The Jeffrey Manufacturing Company. The Company later expanded by acquiring Galion Iron Works, a maker of road-building machinery. In 1974 the Company sold its operating assets to Dresser Industries.

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  • Jeffrey Mining Machinery Company Home Facebook

    Lechner teamed up with Joseph Andrew Jeffrey and formed the Lechner Mining Machine Company in 1877. The Lechner coal-cutting machine eventually became a standard for the coal industry. The Columbus-based business, which in 1887 became known as the Jeffrey Manufacturing Company, was one of the city's most successful and long-lasting firms of the

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  • Jeffrey Manufacturing Company Wikipedia

    The Jeffrey Manufacturing Co. began as the Lechner Mining Machine Company in 1877, and was purchased by Joseph Andrews Jeffrey in 1888. The company's primary market was the coal mine industry, and it began business on a four-acre site. By the late 1940s, the site had grown to 48-acres, including 40 buildings.

  • Jeffrey Mining Machinery Company

    Jeffrey Mining Machinery Company. We are a large-scale manufacturer specializing in producing various mining machines including different types of sand and gravel equipment, milling equipment, mineral processing equipment and building materials equipment. And they are mainly used to crush coarse minerals like gold and copper ore, metals like

  • Jeffrey Manufacturing Company (Columbus, Ohio) Social

    Jeffrey Manufacturing Company was established in 1877 in Columbus, focusing on coal industry machinery and diversifying over the years to supply equipment for various industries. Dresser Industries, inc. acquired the company in 1974. From the description of Jeffrey Mining Machine Company Collection, ca. 1900-1992. (Ohio Historical Society).

  • History of the Jeffrey Mining Corporate Center State

    A Short History of the Jeffrey Mining Corporate Center. 1876 The Lechner Mining Machine Co. was incorporated to build coal mining machinery. At that time, the slowest part of the mining cycle was the under-cutting, which required a miner to lie on his side for hours at a time, digging out a six inch thick cut, 4 feet deep, across a 10 to 20 foot wide face.

  • Jeffrey Mining Machinery Company Fotos Facebook

    Jeffrey Mining Machinery Company, Columbus. 339 Me gusta · 14 personas estuvieron aquí. The continuous search for Jeffrey employees goes on, along with the preserving of the Jeffrey Mining

  • Letcher T. White v. Jeffrey Mining MacHinery Company

    1. This is an appeal from the United States District Court for the Eastern District of Kentucky. Plaintiff-appellee White sued Jeffrey Mining Company, et al. ("Jeffrey") for infringement of claims 1, 12, and 13 of his United States Patent No. 3,524,6801 for a mining machine. After a jury trial, the patent claims in issue were held valid and found infringed.

  • Jeffrey Machine, Inc. Driven by Precision

    Thank you for visiting our website. Since 1977, Jeffrey Machine has offered a complete line of auger tooling, including core barrels, drilling and cleanout buckets as well as other specialty drilling tools in addition to specialty parts and truck accessories.

  • Letcher T. White v. Jeffrey Mining MacHinery Company

    1. This is an appeal from the United States District Court for the Eastern District of Kentucky. Plaintiff-appellee White sued Jeffrey Mining Company, et al. ("Jeffrey") for infringement of claims 1, 12, and 13 of his United States Patent No. 3,524,6801 for a mining machine. After a jury trial, the patent claims in issue were held valid and found infringed.

  • Jeffrey Mining Machinery Company

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  • jeffrey mining machinery company gruppozetasrl

    History of the Jeffrey Mining Corporate Center . A Short History of the Jeffrey Mining Corporate Center 1876 The Lechner Mining Machine Co was incorporated to build coal mining machinery At that time the slowest part of the mining cycle was the under-cutting which required a miner to lie on his side for hours at a time digging out a six inch thick cut 4 feet deep across a 10 to 20 foot wide

  • Jeffrey Manufacturing Company (Columbus, Ohio) Social

    Jeffrey Manufacturing Company was established in 1877 in Columbus, focusing on coal industry machinery and diversifying over the years to supply equipment for various industries. Dresser Industries, inc. acquired the company in 1974. From the description of Jeffrey Mining Machine Company Collection, ca. 1900-1992. (Ohio Historical Society).

  • 723 F2d 1553 White v. Jeffrey Mining Machinery Company

    1. This is an appeal from the United States District Court for the Eastern District of Kentucky. Plaintiff-appellee White sued Jeffrey Mining Company, et al. ("Jeffrey") for infringement of claims 1, 12, and 13 of his United States Patent No. 3,524,6801 for a mining machine. After a jury trial, the patent claims in issue were held valid and found infringed.

  • Letcher T. White, Appellee, v. Jeffrey Mining Machinery

    This is an appeal from the United States District Court for the Eastern District of Kentucky. Plaintiff-appellee White sued Jeffrey Mining Company, et al. ("Jeffrey") for infringement of claims 1, 12, and 13 of his United States Patent No. 3,524,680 1 for a mining machine. After a jury trial, the patent claims in issue were held valid and found infringed.