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US Patent: 597,766
Ratchet-tool
Patentee:
Zachry T. Furbish - Portland, ME

USPTO Classifications:
74/127

Tool Categories:
screwdrivers : screwdriver mechanisms : spiral screwdrivers

Assignees:
North Brothers Manufacturing Co. - Philadelphia, PA

Manufacturer:
North Brothers Manufacturing Co. - Philadelphia, PA

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 08, 1897
Granted: Jan. 25, 1898

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for North Brothers Manufacturing Co.

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