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Device and method for fixing a piston or a piston rod...

Expansible chamber devices – Piston – Plural separable parts
Reexamination Certificate

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Device for circulating sealing gas for mechanical dry seals...

Expansible chamber devices – Piston – Nonmetallic portion
Reexamination Certificate

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Device for connecting a plunger at its crank end to a connecting

Expansible chamber devices – Piston – With separable means for pivotally mounting connecting rod...
Patent

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Device for coupling a lever to a shift cylinder piston

Expansible chamber devices – Piston – With separable means for pivotally mounting connecting rod...
Reexamination Certificate

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Device for supporting and for at least contributing to the...

Expansible chamber devices – Piston – With ball or roller anti-friction means on side wall portion
Reexamination Certificate

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Disjoinable assembly designed for connecting of piston with pist

Expansible chamber devices – Piston – Plural separable parts
Patent

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Double rod end cylinder with split ring coupling

Expansible chamber devices – Piston – Plural separable parts
Reexamination Certificate

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Dual alloy piston and method of manufacture

Expansible chamber devices – Piston – Open-ended hollow skirt type
Reexamination Certificate

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Dual gallery piston

Expansible chamber devices – Piston – With ported chamber in piston part for circulating heat...
Reexamination Certificate

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Dual gallery piston

Expansible chamber devices – Piston – With ported chamber in piston part for circulating heat...
Reexamination Certificate

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Dynamic seals for gas and oil well swabs

Expansible chamber devices – Piston – Side wall portion includes peripheral axially extending...
Patent

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