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Valve with twistable sleeve
US 2,657,004 A
Filed
: 07/11/1949
Issued
: 10/27/1953
Est. Priority Date
: 07/11/1949
Status: Expired due to Term
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9 Citations
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Current Assignee
Julius A. Lovington
Original Assignee
Julius A. Lovington
Inventors
Lovington, Julius A.
Application Number
US03/104,064
Time in Patent Office
1,569 Days
Field of Search
US Class Current
251/4
CPC Class Codes
F16K 7/08
constrictable by twisting
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