|
US3223821A
|
|
Tank welding process
|
|
US3267950A
|
|
Alternating check valve arrangement
|
|
US3137009A
|
|
Water closet trap refill apparatus
|
|
US3165096A
|
|
Compression brake for motor vehicles
|
|
US3026535A
|
|
Double tank flushing apparatus
|
|
US3011176A
|
|
Valved fluid pressure accumulator
|
|
US3076470A
|
|
Vacuum breaking check and shut-off valve
|
|
US2902074A
|
|
Tire plug
|
|
US2915761A
|
|
Pneumatic chambered flushometer
|
|
US2918680A
|
|
Plumbing fixture reservoir
|
|
US2917070A
|
|
Siphonless trap
|
|
US2919621A
|
|
Nail-staple combination
|
|
US2948297A
|
|
Auxiliary nozzle
|
|
US2794614A
|
|
Cushioned valve and seat
|
|
US2800139A
|
|
Traps with vacuum breaker
|
|
US2911185A
|
|
Inflatable valve member
|
|
US2819750A
|
|
Adjustable tires
|
|
US2815678A
|
|
Plunger actuator-packer
|
|
US2705337A
|
|
Door closer
|
|
US2817354A
|
|
Check valve and spout coupling
|
