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US Patent: 2,007,432
Combination Screw Driver and Socket Wrench Tool
Patentee:
Emanuel Mancuso (exact or similar names) - Los Angeles, CA

USPTO Classifications:
81/55, 81/9.24

Tool Categories:
combination tools
wrenches : socket wrenches
screwdrivers

Assignees:
None

Manufacturer:
Plomb Tool Co. - Los Angeles, CA
PROTO - Los Angeles, CA

Witnesses:
none listed

Patent Dates:
Applied: Jun. 12, 1933
Granted: Jul. 09, 1935

Patent Pictures: [ 1 | 2 | 3 ]
Emanuel Mancuso patent July 9, 1935
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Description:
One use for tools of this sort was adjustment of engine valve tappets. Examples produced bearing the PLOMB and PROTO brand names and this patent number have been reported.

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