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Suction head for vacuum cleaners
US 2,243,935 A
Filed
: 05/04/1940
Issued
: 06/03/1941
Est. Priority Date
: 05/04/1940
Status: Expired due to Term
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Current Assignee
Clarence Williamson James
Original Assignee
Clarence Williamson James
Inventors
CLARENCE WILLIAMSON JAMES
Application Number
US02/333,408
Time in Patent Office
395 Days
Field of Search
US Class Current
15/321
CPC Class Codes
A47L 11/30
by suction
A47L 11/40
Parts or details of machine...
A47L 11/4036
Parts or details of the sur...
A47L 11/4044
Vacuuming or pick-up tools;...
A47L 11/4072
Arrangement of castors or w...
A47L 11/4077
Skirts or splash guards
A47L 11/4088
Supply pumps; Spraying devi...
A47L 11/4094
Accessories to be used in c...
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