|
US2252239A
|
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Fluid sampling device
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|
US2237462A
|
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Liquid level gauge equipment
|
|
US2237461A
|
|
Liquid level gauge equipment
|
|
US2188022A
|
|
Safety device for volatile liquid storage tanks
|
|
US2148330A
|
|
Automatic drain float
|
|
US2152422A
|
|
Safety device for volatile liquid storage tanks
|
|
US2055954A
|
|
Apparatus for unloading liquid containers
|
|
US1937447A
|
|
Gauge construction for tanks
|
|
US1983417A
|
|
Fire screen unit for volatile liquid storage receptacles
|
|
US1890870A
|
|
Control valve for volatile liquid storage tanks
|
|
US1844614A
|
|
Portable device for removing impurities from storage tanks
|
|
US1763544A
|
|
Gasoline-dispensing device
|
|
US1426843A
|
|
Power-transmitting mechanism
|
|
US1376906A
|
|
Bottle-capper
|
|
US1248950A
|
|
Vacuum gasolene-renovator.
|
|
US1248951A
|
|
Process of purifying fluids.
|
|
US1167536A
|
|
Agitating mechanism.
|
|
US1040057A
|
|
Rotary pump.
|
|
US1087410A
|
|
Liquid-drawing apparatus.
|
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US989208A
|
|
Bracket.
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