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US2603450A
|
|
Pendulum-type ball check valve
|
|
US2454072A
|
|
Combined pipe union and check valve
|
|
US2411281A
|
|
Poultry feeder
|
|
US2318505A
|
|
Machine for automatically forming projectiles
|
|
US2170478A
|
|
Valved pipe union
|
|
US2067773A
|
|
Coupling nut
|
|
US2103427A
|
|
Combined pipe union and ball check valve
|
|
US2059531A
|
|
Combined pipe union and check valve
|
|
US1932348A
|
|
Combination check valve and union
|
|
US1862600A
|
|
Shoe easing device
|
|
US1758844A
|
|
Combined chuck and brake mechanism
|
|
US1523817A
|
|
Pipe union
|
|
CA174388A
|
|
Forging machine for hollow bodies
|
|
US1207948A
|
|
Forging-machine for making circular caps and analogous metal forms.
|
|
US1211193A
|
|
Forging-machine for making hollow bodies.
|
|
US1482311A
|
|
Mail sorting and distributing machine
|
|
US1032290A
|
|
Puzzle.
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