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US Patent: 2,490,255
Portable power actuated rim-driven annular saw
Patentee:
Henry A. Chase - Newtonville, MA

USPTO Classifications:
30/371, 30/389

Tool Categories:
woodworking machines : handheld power tools
woodworking machines : circular saws : annular saws

Assignees:
Cummings Machine Works - Boston, MA

Manufacturer:
Cummings Machine Works - Boston, MA

Witnesses:
Unknown

Patent Dates:
Applied: Oct. 05, 1945
Granted: Dec. 06, 1949

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Cumming Machine Works
Description:
This unusual saw was fairly popular at one time; it was sold as the "Sally Saw" by Cummings Machine Works.

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