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US Patent: 921,068
Punching or Shearing Machine
Patentees:
Charles A. Bertsch - Cambridge City, Wayne County, IN
Hermann Schelhammer - Cambridge City, Wayne County, IN
Lawrence H. Bertsch - Cambridge City, Wayne County, IN

USPTO Classifications:
83/135, 83/144, 83/165, 83/389, 83/573, 83/620

Tool Categories:
metalworking machines : metal punches
metalworking machines : metal shears

Assignees:
Bertsch & Co. - Cambridge City, Wayne County, IN

Manufacturer:
Bertsch & Co. - Cambridge City, Wayne County, IN

Witnesses:
Santford Wilson
William Griesinger
Elmer R. Shipley
M. S. Belden

Patent Dates:
Applied: Jul. 02, 1908
Granted: May 11, 1909

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Bertsch & Co.

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