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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PIEDAD FELIX de la
Original Assignee
PIEDAD FELIX de la
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PIEDAD FELIX de lafiledCriticalPIEDAD FELIX de la
Priority to ES0207686ApriorityCriticalpatent/ES207686A2/en
Publication of ES207686A2publicationCriticalpatent/ES207686A2/en
Improvements introduced in the object of the main patent number 197,701 by device for the operation of doors characterized in that the main axis or pivot of the door is connected to a chain whose ends act on lateral springs of convenient power through pulleys that in their displacement compress one of them while the opposite is kept at rest resting on a support-retaining stop. (Machine-translation by Google Translate, not legally binding)
ES0207686A1953-02-101953-02-10A device for the operation of doors (Machine-translation by Google Translate, not legally binding)
ExpiredES207686A2
(en)
Retention and traction mechanism for doors that are to establish the hermetic closure of a venue (Machine-translation by Google Translate, not legally binding)