United States Patent 2734211
US Patent References:
Brush
- - 1396973

Brush
- - 1671334

Suction cleaner
- - 2085700

Suction cleaner
- - 2095472

Suction cleaner
- - 2261768


Publication Date:
02/14/1956
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Primary Class:
15/183
Other Classes:
15/366, 15/182
International Classes:
A47L9/04
US Patent References:
2283833Suction cleaner
2414853Suction cleaner