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US Patent: 2,439,596
Air filter for polishing machines
Patentee:
Stephen A. Crosby (exact or similar names) - Chicago, IL

USPTO Classifications:
451/344, 451/488, 55/480

Tool Categories:
handheld power tools : handheld power sanders
woodworking machines : sanding machines : handheld power sanders

Assignees:
Sterling Tool Products Co. - Chicago, IL

Manufacturer:
Sterling Tool Products Co. - Chicago, IL

Witnesses:
Unknown

Patent Dates:
Applied: Oct. 02, 1946
Granted: Apr. 13, 1948

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Sterling Products Co.; Sterling Tool Products Co.

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