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US Patent: 1,273,136
Clamping-machine
Patentee:
Oscar Bergstrom - Chicago, IL

USPTO Classifications:
269/152, 269/57, 269/68

Tool Categories:
work holding : clamps

Assignees:
Handy Manufacturing Co. - Chicago, IL

Manufacturer:
Handy Manufacturing Co. - Chicago, IL

Witnesses:
A. F. Hargrave, Jr.
H. Anderson

Patent Dates:
Applied: Jun. 16, 1916
Granted: Jul. 23, 1918

Patent Pictures: [ 1 | 2 ]
USPTO pdf tiff
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"Vintage Machinery" entry for Handy Manufacturing Co.

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