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Surface cleaning tool
US 2,850,757 A
Filed
: 08/22/1955
Issued
: 09/09/1958
Est. Priority Date
: 08/22/1955
Status: Expired due to Term
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Current Assignee
Jack E. Duff
Original Assignee
Jack E. Duff
Inventors
Duff, Jack E.
Application Number
US03/529,753
Time in Patent Office
1,114 Days
Field of Search
US Class Current
15/359
CPC Class Codes
A47L 9/06
with fixed, e.g. adjustably...
A47L 9/0653
with mechanical actuation, ...
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