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US Patent: 2,947,197
Guards for machine tools
Patentees:
David D. Pettigrew (exact or similar names) - Pittsburgh, PA
Donald E. Bell (exact or similar names) - Pittsburgh, PA

USPTO Classifications:
474/146, 74/616

Tool Categories:
metalworking machines : drilling and boring : drill presses
woodworking machines : wood drilling and boring : drill presses

Assignees:
Rockwell Mfg. Co. - Pittsburgh, PA

Manufacturer:
Rockwell Mfg. Co. - Pittsburgh, PA

Witnesses:
Unknown

Patent Dates:
Applied: Aug. 19, 1957
Granted: Aug. 02, 1960

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Delta Specialty/Delta Mfg. Co./Delta-Rockwell/Rockwell Intl.
Description:
The patent number was listed in a 1965 catalog of machinery from Rockwell Mfg. Co.

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