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US Patent: 1,881,029
Socket Wrench
Patentee:
Edward M. Pfauser (exact or similar names) - Milwaukee, WI

USPTO Classifications:
157/1.49, 7/100, 7/138, 81/124.7

Tool Categories:
wrenches : socket wrenches

Assignees:
Blackhawk Mfg. Co. - Milwaukee, WI

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: May 29, 1930
Granted: Oct. 04, 1932

Patent Pictures:
Edward M. Pfauser patent Oct. 4, 1932
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Description:
The side hole is to "actuate the lever clamp" on certain types of demountable rim tires. The "L" handled socket is for the clamping bolts holding demountable rims to the wheel.

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