Title:
Shadow-line indicator for trimming saws
Document Type and Number:
United States Patent 2307820
Inventors:
Butters, Charles M.
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Publication Date:
01/12/1943
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Assignee:
Butters, Charles M.
Primary Class:
Other Classes:
101/474, 33/443
International Classes:
B27B31/06; B27B31/00