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US Patent: 267,732
Bit-stock
Patentee:
Oliver D. Warfield - Springfield, MA

USPTO Classifications:
279/76, 279/83

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Nov. 21, 1882

Patent Pictures:
USPTO pdf tiff
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