Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Individual
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Individual
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Application filed by IndividualfiledCriticalIndividual
Priority to JP50112059ApriorityCriticalpatent/JPS5236836A/en
Publication of JPS5236836ApublicationCriticalpatent/JPS5236836A/en
PURPOSE: To provide a device which allows the door to be released from the connection with a converting device when the power failure occurrs or the power source is shut off, thereby making the mannual opening and closing operation thereof easy to prevent disasters including fire at an emergency.
COPYRIGHT: (C)1977,JPO&Japio
JP50112059A1975-09-181975-09-18Automatic door
PendingJPS5236836A
(en)