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Suction-operated device for scrubbing and drying floors
US 2,635,277 A
Filed
: 02/16/1948
Issued
: 04/21/1953
Est. Priority Date
: 02/16/1948
Status: Expired due to Term
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Current Assignee
William J. Belknap
Original Assignee
William J. Belknap
Inventors
Belknap, William J.
Application Number
US03/008,533
Time in Patent Office
1,891 Days
Field of Search
US Class Current
15/322
CPC Class Codes
A47L 11/30
by suction
A47L 11/4022
with means for recycling th...
A47L 11/4036
Parts or details of the sur...
A47L 11/4088
Supply pumps; Spraying devi...
A47L 11/4094
Accessories to be used in c...
A47L 9/06
with fixed, e.g. adjustably...
A47L 9/0613
with means specially adapte...
A47L 9/0626
Rigidly anchored lips, e.g....
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