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US Patent: 852,874
Wrench
Patentee:
Henry W. De Graff (exact or similar names) - East Syracuse, Onondaga County, NY

USPTO Classifications:
81/59.1

Tool Categories:
wrenches : ratchet wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
M. A. Schmidt
F. A. Barron
Mary J. Barber
Elsie O. Evans
Patent Dates:
Applied: Aug. 30, 1906
Granted: May 07, 1907

Patent Pictures:
Henry W. De Graff patent May 7, 1907
USPTO (New site tip)
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Description:
The clutch pins are loose in radial recesses, and "are free to drop."

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