MAGNETIC DRAFTING ELEMENT
United States Patent 3481006

Inventors:
Burnham, Virgil A.
Publication Date:
12/02/1969
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Assignee:
MAREMONT CORP
Primary Class:
Other Classes:
19/295, 19/.260
International Classes:
D01H5/74; D01H5/00; D01G31/00; D01H5/54; D01H5/52
Foreign References:
FR906029A




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