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US Patent: 102,577
Metal Chuck
Patentees:
Augustus Newell - Chicago, Cook County, IL
William Pim - Chicago, Cook County, IL

USPTO Classifications:
269/134, 269/240, 269/258, 269/85

Tool Categories:
metalworking machines : metal planers
work holding : vises : chucks

Assignees:
None

Manufacturer:
Pratt & Whitney Co. - Hartford, Hartford County, CT

Witnesses:
Henry F. Talbot
H. R. Moore
Charles Nida
S. S. Mabee

Patent Dates:
Granted: May 03, 1870

Patent Pictures: [ 1 | 2 | 3 ]
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"Vintage Machinery" entry for Pratt, Whitney & Co.
Description:
Munn & Co.- patent attorneys

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