4. Textiles: fiber preparation

Theodorus Gerhardus Potma

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Fast working hydraulic valve

Valves and valve actuation – Fluid actuated or retarded – Pilot or servo type motor
Reexamination Certificate

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Free-piston engine

Internal-combustion engines – Free piston – Single chamber; one piston
Patent

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Hydraulic switching valve, and a free piston engine provided the

Power plants – Internal combustion type free piston device supplies motive...
Patent

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Matrix printer having detachable elements

Textiles: fiber preparation
Patent

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Matrix printer incorporating intermittent ink ribbon transport

Textiles: fiber preparation
Patent

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Profile ID: LFUS-PAI-P-283954

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