Base for jacks
United States Patent 1350970

Inventors:
Edwards, Hutchison Arthur
Harry, Krah
Publication Date:
08/24/1920
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Assignee:
Edwards, Hutchison Arthur
Harry, Krah
Primary Class:
248/346.030
Other Classes:
279/8, 254/1, 254/DIG.001
International Classes:
B66F13/00