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US Patent: 2,135,894
Machine for forming spiral bevel gear cutters
Patentee:
Ernest C. Head (exact or similar names) - Detroit, MI

USPTO Classifications:
451/123, 451/149, 451/239, 451/247, 451/374, 451/47

Tool Categories:
metalworking machines : grinders : sharpening machines

Assignees:
Goddard & Goddard Co., Inc. - Detroit, MI

Manufacturer:
Goddard & Goddard Co. - Detroit, MI

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 06, 1936
Granted: Nov. 08, 1938

Patent Pictures:
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Vintage Machinery entry for Goddard & Goddard Co.
Description:
This machine grinds gear cutters with the special geometry covered in patent 2,135,893.

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