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US Patent: 1,365,071
Socket Wrench
Walter A. Abegg - Los Angeles, CA

USPTO Classifications:

Tool Categories:
wrenches : socket wrenches

Walter A. Abegg - Los Angeles, CA
Baldwin Reinhold - Los Angeles, CA

Not known to have been produced

Wm. H. Maxwell
Virginia I. Beringer

Patent Dates:
Applied: Aug. 18, 1919
Granted: Jan. 11, 1921

Patent Pictures:
Walter A. Abegg patent January 11, 1921
USPTO pdf tiff
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The main features of the patent are the split shank with set screw to wedge the shank in the socket, and sockets with side holes to allow access to the set screw.

Subsequently improved by patent no. 1,398,054; patent no. 1,422,067 moves closer to a typical spring / ball socket retainer.

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