Canister type vacuum cleaners
United States Patent 2930446

Inventors:
Momberg, James W.
Gall, Francis A.
Walter, Krzesiewski
Publication Date:
03/29/1960
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Assignee:
SINGER MFG CO
Primary Class:
55/356
Other Classes:
55/378
International Classes:
A47L5/36; A47L5/22
US Patent References:
2751038Air supported cleaner with control
2779432Vacuum cleaner assembly
2794513Suction cleaner structure
Foreign References:
CA486673A