Barn sweeper
United States Patent 3115654
US Patent References:
/0918602.html
- - 0918602


Inventors:
Lawrence, Zimmerman
Publication Date:
12/31/1963
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Assignee:
Lawrence, Zimmerman
Primary Class:
15/49.100
Other Classes:
15/87, 56/17.200
International Classes:
A01K1/01