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DRAIN FILTER
US 3,441,140 A
Filed
: 10/29/1965
Issued
: 04/29/1969
Est. Priority Date
: 09/02/1965
Status: Expired due to Term
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53
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53 Citations
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Current Assignee
Reginald C. Thurber
,
Thurber Margaret Eleanor
Original Assignee
Reginald C. Thurber
,
Thurber Margaret Eleanor
Inventors
Thurber, Reginald C.
,
THURBER MARGARET ELEANOR
Application Number
US04/505,647
Time in Patent Office
1,278 Days
Field of Search
US Class Current
210/170.07
CPC Class Codes
E02B 11/005
Drainage conduits
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