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Suction cleaner
US 2,272,394 A
Filed
: 07/05/1938
Issued
: 02/10/1942
Est. Priority Date
: 07/05/1938
Status: Expired due to Term
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Current Assignee
Ernest Armstrong
Original Assignee
Ernest Armstrong
Inventors
Armstrong, Ernest
Application Number
US02/217,475
Time in Patent Office
1,316 Days
Field of Search
US Class Current
55/364
CPC Class Codes
A47L 7/04
for using the exhaust air f...
A47L 9/122
flat
A47L 9/1427
Means for mounting or attac...
A47L 9/242
Hose or pipe couplings
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