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US Patent: 1,008,181
Change-speed mechanism
Patentee:
Robert Milne - Rockford, IL

USPTO Classifications:
74/348

Tool Categories:
metalworking machines : drilling and boring : drill presses
woodworking machines : wood drilling and boring : drill presses

Assignees:
Rockford Drilling Machine Co. - Rockford, IL

Manufacturer:
Rockford Drilling Machine Co. - Rockford, IL

Witnesses:
Mary R. Frost
William P. Bond

Patent Dates:
Applied: Jan. 03, 1911
Granted: Nov. 07, 1911

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Rockford Drilling Machine Co.

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