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Patent number:
Patent Date:
US Patent: 873,441
Reversing tap-holder
Patentee:
Wilbur A. Leonard (
exact
or
similar
names) - New Haven, CT
USPTO Classifications:
408/133
,
74/377
Tool Categories:
metalworking machines
:
drilling and boring
:
tapping heads and chucks
Assignees:
Geometric Tool Co.
- New Haven, CT
Manufacturer:
Geometric Tool Co.
- New Haven, CT
Witnesses:
Edith M. Buckbee
C. C. Chatfield
Patent Dates:
Applied:
Feb. 06, 1907
Granted:
Dec. 10, 1907
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Geometric Tool Co.
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