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US Patent: 254,862
Chain Wrench
William H. Brock - Corona, NY

USPTO Classifications:

Tool Categories:
wrenches : pipe wrenches : chain and strap wrenches

William H. Brock - Corona, NY
John W. Alexander - New York, NY

J. H. Williams & Co. - Brooklyn, NY

Samuel J. Cohen
James Clinch Smith
Pierre F. Spencer

Patent Dates:
Applied: Feb. 09, 1882
Granted: Mar. 14, 1882

Patent Pictures:
William H. Brock patent March 14, 1882
USPTO pdf tiff
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This was one of Brock's early series of chain wrench patents which were used in the Brock's Patent Chain Wrench produced by J.H. Williams and Company. Brock was also producing chain wrenches at his own company. Patent no. 298,442 was the next Brock chain wrench patent in the early series.

Alexander N. Wright - patent attorney

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