4. Spring devices
  5. Vehicle
  6. Comprising compressible fluid

Ralph Roper

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Apparatus and method for cushioning the action of draw dies oper

Spring devices – Vehicle – Comprising compressible fluid
Patent

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Soft-start, soft-return gas spring

Brakes – Internal-resistance motion retarder – Having a thrust member with a variable volume chamber
Reexamination Certificate

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Soft-start, soft-return gas spring

Spring devices – Fluid – Expansible-contractible chamber device
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1738095

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