US Patent: 612,240 - Machine for dressing and grinding metal


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US Patent: 612,240

Machine for dressing and grinding metal

Patentees:

Carl L. Grohmann (exact or similar names) - Hartford, CT

Lewis E. Harper (exact or similar names) - Hartford, CT

USPTO Classifications:

451/213, 451/237, 451/548

Tool Categories:

metalworking machines : grinders

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Richard F. Dow

Henry Bissell

Patent Dates:
Applied:	Nov. 04, 1897
Granted:	Oct. 11, 1898

Patent Pictures:

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Description:

See patent 612,239 for more on this patent, the two patents covering essentially the same machine. See patent 612,412 for more on co-inventor Carl L. Grohmann.