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United States Patent 3207909
Inventors:
Lakso, Eugene E.
Dempsey, Walter J.
Publication Date:
09/21/1965
Assignee:
LAKSO COMPANY INC
Other Classes:
221/2, 53/507, 250/215, 235/98C, 53/501
International Classes:
G06M1/10; G06M7/04; G06M1/00; G06M7/00