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Patent number:
Patent Date:
US Patent: 197,672
Improvement in Hand Screw-Clamps
Patentee:
Albert M. Schappa (
exact
or
similar
names) - New Haven, CT
USPTO Classifications:
269/220
Tool Categories:
work holding
:
clamps
:
hand screws
Assignees:
W. & E. T. Fitch
- New Haven, CT
Manufacturer:
Not known to have been produced
Witnesses:
J. H. Shumway
H. A. Kitson
Patent Dates:
Applied:
Oct. 26, 1877
Granted:
Nov. 27, 1877
Patent Pictures:
USPTO
(New site tip)
Google Patents
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