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US Patent: 689,144
Edging or other refuse grinder
Patentee:
Edwin E. Thomas - St. Paul, MN

USPTO Classifications:
144/118, 144/176, 144/185, 241/220, 241/92

Tool Categories:
woodworking machines : specialty machines : wood grinding machines

Assignees:
Edwin E. Thomas - St. Paul, MN
Union Iron Works (Minneapolis) - Minneapolis, MN

Manufacturer:
Union Iron Works (Minneapolis) - Minneapolis, MN

Witnesses:
Richard Paul
M. C. Noonan

Patent Dates:
Applied: Sep. 12, 1901
Granted: Dec. 17, 1901

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Union Iron Works (Minneapolis)

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