Actuating tool for pipe grates
United States Patent 1998698

Inventors:
Bach, Anton M.
Publication Date:
04/23/1935
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Assignee:
Bach, Anton M.
Primary Class:
131/184.200
Other Classes:
131/224, 131/246
International Classes:
A24F5/08; A24F9/10; A24F5/00; A24F9/00