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Vacuum cleaner
US 2,535,963 A
Filed
: 06/10/1947
Issued
: 12/26/1950
Est. Priority Date
: 06/10/1947
Status: Expired due to Term
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Current Assignee
Marshall G. Sisemore
Original Assignee
Marshall G. Sisemore
Inventors
Sisemore, Marshall G.
Application Number
US02/753,697
Time in Patent Office
1,295 Days
Field of Search
US Class Current
55/429
CPC Class Codes
A47L 5/365
of the vertical type, e.g. ...
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