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Vacuum cleaner
US 2,522,498 A
Filed
: 12/06/1945
Issued
: 09/19/1950
Est. Priority Date
: 07/18/1945
Status: Expired due to Term
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Current Assignee
Arnold H. Beede
Original Assignee
Arnold H. Beede
Inventors
Beede, Arnold H.
Application Number
US02/633,233
Time in Patent Office
1,748 Days
Field of Search
US Class Current
55/288
CPC Class Codes
A47L 9/108
Dust compression means
A47L 9/125
funnel-shaped
A47L 9/20
Means for cleaning filters
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