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E Dervaux SA Ets
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E Dervaux SA Ets
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Application filed by E Dervaux SA EtsfiledCriticalE Dervaux SA Ets
Application grantedgrantedCritical
Publication of FR832476ApublicationCriticalpatent/FR832476A/fr
F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
General Engineering & Computer Science
(AREA)
FR832476D1937-05-101937-05-10Procédé de fabrication de soupapes creuses
ExpiredFR832476A
(fr)