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US Patent: 1,991,337
Dust separating apparatus
Patentee:
John C. Smith (exact or similar names) - Cincinnati, OH

USPTO Classifications:
29/DIG.078, 29/DIG.083, 451/456, 55/406, 55/433

Tool Categories:

Assignees:
United States Electrical Tool Co. - Cincinnati, OH

Manufacturer:
United States Electrical Tool Co. - Cincinnati, OH

Witnesses:
Unknown

Patent Dates:
Applied: Feb. 25, 1933
Granted: Feb. 12, 1935

Patent Pictures:
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Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for United States Electrical Tool Co.

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