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Publication of FR844667ApublicationCriticalpatent/FR844667A/fr
E05B63/00—Locks or fastenings with special structural characteristics
E05B63/18—Locks or fastenings with special structural characteristics with arrangements independent of the locking mechanism for retaining the bolt or latch in the retracted position
E05B63/20—Locks or fastenings with special structural characteristics with arrangements independent of the locking mechanism for retaining the bolt or latch in the retracted position released automatically when the wing is closed
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Structural Engineering
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FR844667D1938-10-131938-10-13Perfectionnements aux dispositifs de fermeture pour portes
ExpiredFR844667A
(fr)