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US Patent: 207,620
Improvement in Hollow-Screw Pin-Vises
Patentee:
Julius Parmelee - Des Moines, IA

USPTO Classifications:
269/234, 269/5, 269/6, 279/48, 279/53

Tool Categories:
work holding : vises : hand vises
trade specific : clockmaker
trade specific : gunsmith

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Thomas G. Orwig
C. A. Johnson

Patent Dates:
Applied: Aug. 31, 1875
Granted: Sep. 03, 1878

Patent Pictures:
USPTO pdf tiff
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