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BOUILLON FRERES ETS
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BOUILLON FRERES ETS
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Application filed by BOUILLON FRERES ETSfiledCriticalBOUILLON FRERES ETS
Application grantedgrantedCritical
Publication of FR37636EpublicationCriticalpatent/FR37636E/en
F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16J—PISTONS; CYLINDERS; SEALINGS
F16J13/00—Covers or similar closure members for pressure vessels in general
F16J13/16—Pivoted closures
F16J13/18—Pivoted closures pivoted directly on the frame
FR37636D1929-10-301929-10-30
Improvements in watertight closures
ExpiredFR37636E
(en)