US Patent: 940,940 - Rotary cutter-head


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US Patent: 940,940

Rotary cutter-head

Patentee:

C. Oscar Porter (exact or similar names) - Grand Rapids, MI

USPTO Classifications:

Tool Categories:

woodworking machines : machine and tool cutters : cutterheads

Assignees:

None

Manufacturer:

C. O. Porter Machinery Co. - Grand Rapids, MI

Witnesses:

Luther V. Moulton

Patent Dates:
Applied:	Aug. 14, 1909
Granted:	Nov. 23, 1909

Patent Pictures:

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Vintage Machinery entry for C. O. Porter Machinery Co.

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