Title:
Street-sweeping brush
United States Patent 1399634


Inventors:
Walter, Lund Charles
Publication Date:
12/06/1921
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Assignee:
Walter, Lund Charles
Primary Class:
15/183
Other Classes:
56/193, 15/83
International Classes:
E01H1/04; E01H1/05; E01H1/08; E01H1/00