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US Patent: 2,415,121
Drill grinder
Patentees:
Christy Arthur Wiken (exact or similar names) - Milwaukee, WI
Hugo V. Boehnke (exact or similar names) - Milwaukee, WI

USPTO Classifications:
125/11.21, 451/226, 451/367, 451/375

Tool Categories:
woodworking machines : machine and tool cutters : cutter grinding

Assignees:
Rockwell Mfg. Co. - Pittsburgh, PA

Manufacturer:
Rockwell Mfg. Co. - Pittsburgh, PA

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 10, 1943
Granted: Feb. 04, 1947

Patent Pictures:
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Vintage Machinery entry for Delta Specialty/Delta Mfg. Co./Delta-Rockwell/Rockwell Intl.

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