US2012003 Патенты
Aug. 20, 1935.ATTACHMENT FOR OPERATING C. HALL, GATE JR WALWES BY MEANS 2012,003r OF FLUID PRESSURE FROM ANY DESIRED DISTANCE ATTACHMENT FOR OPERATING GATE WALVES BY MEANS OF FLUID PRESSURE FROM ANY DESIRED DISTANCE UNITED STATES PATENT OFFICE 2,012,003. WALVES BY MEANS OF FLURD PRES SURE FROM ANY DESERED DESTANCE Carlos Hall, Jr., Mexico D. F., Mexico Original application July 22, 1932, serial No. 624,127. Divided and this application July 26, 1934, Serial No. 737,130. in Mexico June 23, This invention refers to an attachment for sure of water, air, steam, gas or any other fluid element from
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