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US Patent: 1,042,318
Combination Tool
John W. Chamberlain - Bismarck, ND

USPTO Classifications:
470/207, 7/127, 7/139, 81/124.4

Tool Categories:
combination tools
wrenches : wrench adjustment types : screw adjust wrenches


Chamberlain Wrench Company - Geneva, IL

M. G. Hagen
R. H. Thistlethwaite

Patent Dates:
Applied: Jul. 22, 1911
Granted: Oct. 22, 1912

Patent Pictures: [ 1 | 2 | 3 ]
John W. Chamberlain Pat. Oct. 22, 1912
USPTO pdf tiff
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The tool combines pipe or bolt threading dies, an adjustable wrench, and pliers or tongs. The patented feature is the disposition of the adjustable open end wrench at the end of a handle. The manufactured tool has a die stock for interchangeable dies rather than the die faces on the handles shown in the patent drawing , and a different adjustable wrench than depicted in the patent drawings.

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