US Patent: 2,715,846 - Method of groove forming


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US Patent: 2,715,846

Method of groove forming

Patentees:

Benjamin Grob (exact or similar names) - Grafton, WI

Ernst Grob (exact or similar names) - Zurich, Switzerland

USPTO Classifications:

279/8, 29/890.046, 29/890.048, 72/100, 72/231

Tool Categories:

metalworking machines : gear making machines

Assignees:

Grob, Inc. - Grafton, WI

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	May 16, 1951
Granted:	Aug. 23, 1955

Patent Pictures:

USPTO (New site tip)
Google Patents
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Vintage Machinery entry for Grob, Inc.

Description:

"A general aim of the present invention is to provide a novel method of metal rolling particularly adapted for the rapid and economical production of gears and other similar repetitively grooved essentially cylindrical shapes..."