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Patent number:
Patent Date:
US Patent: 902,957
Locking mechanism for ratchet screw-drivers
Patentee:
Zachry T. Furbish (
exact
or
similar
names) - Philadelphia, PA
USPTO Classifications:
74/127
,
74/577R
,
D8/82
Tool Categories:
screwdrivers
:
screwdriver mechanisms
:
spiral screwdrivers
Assignees:
North Brothers Manufacturing Co.
- Philadelphia, PA
Manufacturer:
North Brothers Manufacturing Co.
- Philadelphia, PA
Witnesses:
William A. Barr
Joseph H. Klein
Patent Dates:
Applied:
Dec. 31, 1902
Granted:
Nov. 03, 1908
Patent Pictures:
USPTO
(New site tip)
Google Patents
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