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Drain cleaner
US 2,500,404 A
Filed
: 12/13/1946
Issued
: 03/14/1950
Est. Priority Date
: 12/13/1946
Status: Expired due to Term
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Current Assignee
Thomas S. Donnelly
Original Assignee
Thomas S. Donnelly
Inventors
Donnelly, Thomas S.
Application Number
US02/715,944
Time in Patent Office
1,187 Days
Field of Search
US Class Current
4/255.06
CPC Class Codes
E03C 1/306
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