Title:
Parallel bars and the like for magnetic chucks
Document Type and Number:
United States Patent 1330558
Inventors:
Simmons, Frank L.
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Publication Date:
02/10/1920
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Assignee:
TAFT PEIRCE MFG COMPANY
Primary Class:
Other Classes:
269/8
International Classes:
B23Q3/154; B23Q3/15