US Patent: 1,331,451 - Surface-working machine


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US Patent: 1,331,451

Surface-working machine

Patentee:

Swan F. Anderson (exact or similar names) - Rockford, IL

USPTO Classifications:

29/90.01, 409/288

Tool Categories:

metalworking tools : machinist tools : metal scrapers

Assignees:

Anderson Brothers Mfg. Co. - Rockford, IL

Manufacturer:

Anderson Brothers Mfg. Co. - Rockford, IL

Witnesses:

Unknown

Patent Dates:
Applied:	Dec. 20, 1918
Granted:	Feb. 17, 1920

Patent Pictures:

USPTO (New site tip)
Google Patents
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Vintage Machinery entry for Anderson Bros. Mfg. Co.

Description:

The invention, a pneumatically powered vibrating ram, seems primarily intended to be a metal scraper although the specification allows the possibility of using it on wood or other surfaces as a scraper or burnisher.