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US Patent: 71,986
Improvement in the Manufacture of Tack Hammers
Thomas A. Conklin - New Britain, CT

USPTO Classifications:
7/147, 7/169

Tool Categories:
woodworking tools : hammers : tack hammers


The Stanley Works - New Britain, CT

Thomas D. Stetson
Allan T. Sangston

Patent Dates:
Granted: Dec. 10, 1867

Reissue Information:
Reissued as RE3,308 (Feb. 23, 1869)

Patent Pictures:
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"Vintage Machinery" entry for The Stanley Works
One piece casting with the handle hollowed with a large surface but with little material and coated to give it a rust proof surface. The casting is treated, "bit" with acid and then tinned or japanned.

Incorporated by Stanley as their No 4 Improved Tack Hammer, No 5 Saddler's Hammer, No 6 Tack Hammer and No 12 Tack Hammer.

A known example of the No 12 style is marked with just this patent & R. Boeklen's Aug. 28, 1860 magnetic head patent 29,760. John Walter indicates that the No 12 was not marked with the Stanley name.

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