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Patent number:
Patent Date:
US Patent: 982,510
Ratchet mechanism
Patentee:
George O. Leopold (
exact
or
similar
names) - Philadelphia, PA
USPTO Classifications:
192/43.1
,
192/51
,
411/964
,
74/134
,
74/378
,
74/577R
,
81/34
Tool Categories:
woodworking tools
:
hand drills
:
eggbeater drills
Assignees:
North Brothers Manufacturing Co.
- Philadelphia, PA
Manufacturer:
North Brothers Manufacturing Co.
- Philadelphia, PA
Witnesses:
William A. Barr
Henry Howson
Patent Dates:
Applied:
Aug. 28, 1909
Granted:
Jan. 24, 1911
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Steve Gosselin
Description:
Improvement to ratchet mechanisms for North Brothers drills.
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