US1005092A
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Automatic pipe-coupling.
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US1083350A
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Pipe-coupling gasket.
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US950812A
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Interchange coupling device.
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US1130694A
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Automatic train-pipe coupling.
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US1131194A
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Automatic car-coupling.
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US888189A
|
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Automatic train-pipe coupling.
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US1127145A
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Car-coupling.
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US1009370A
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Automatic electric coupling mechanism.
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US1015904A
|
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Swivel pipe-joint.
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US890831A
|
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Automatic train-pipe coupling.
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US1025291A
|
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Automatic train-pipe coupling.
|
US1001117A
|
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Ball-and-socket pipe-joint.
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US839878A
|
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Device for operating train-pipe cocks.
|
US755918A
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Operating device for train-pipe cocks.
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US827988A
|
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Coupling apparatus for electric circuits.
|
US883225A
|
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Coupling apparatus for electric circuits.
|
US787391A
|
|
Ball-and-socket pipe-joint.
|
US741699A
|
|
Automatic pipe-coupling.
|