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US Patent: 197,672
Improvement in Hand Screw-Clamps
Patentee:
Albert M. Schappa - 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 pdf tiff
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