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Four-way valve
US 3,411,534 A
Filed
: 12/28/1966
Issued
: 11/19/1968
Est. Priority Date
: 12/28/1966
Status: Expired due to Term
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Petitions
131
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11
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Current Assignee
Bankers Trust Company
(Deutsche Bank)
Original Assignee
Frank L. Rose
Inventors
Rose, Frank L.
Application Number
US04/605,350
Time in Patent Office
692 Days
Field of Search
US Class Current
137/595
CPC Class Codes
A61M 39/28
Clamping means for squeezin...
F16K 11/027
the fluid flowing through a...
F16K 7/06
by means of a screw-spindle...
Y10T 137/87161
With common valve operator
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