4. Valves and valve actuation
  5. With means to increase head and seat contact pressure
  6. With positive reduction

Rolf Kramer

Inventor

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Bunker closure door operating mechanism

Movable or removable closures – With operator for movably mounted closure – Operating lever or link and closure swing about parallel axes
Patent

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Drop-frame urban rapid transit car

Railway rolling stock – Trains – Articulated
Patent

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Freight car construction

Railway rolling stock – Special car bodies – Freight
Patent

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Globe valve construction

Valves and valve actuation – With means to increase head and seat contact pressure – With positive reduction
Patent

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Jumping riding toy

Games – toys – and sports goods – Toy – Rocking or bouncing
Design Patent

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Profile ID: LFUS-PAI-P-16289

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