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Automatic shut-off valve
US 3,020,924 A
Filed
: 09/14/1959
Issued
: 02/13/1962
Est. Priority Date
: 09/14/1959
Status: Expired due to Term
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Current Assignee
Robert H. Davies
Original Assignee
Robert H. Davies
Inventors
Davies, Robert H.
Application Number
US03/839,823
Time in Patent Office
883 Days
Field of Search
US Class Current
137/386
CPC Class Codes
F16K 21/18
closed when a rising liquid...
Y10T 137/2322
Jet control type
Y10T 137/7287
Liquid level responsive or ...
Y10T 137/7339
By weight of accumulated fluid
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