Gear-engagement driven speed-adjustable door closer

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Bibliographic Details
Main Author YOU, JIA-ZHU
Format Patent
LanguageChinese
English
Published 11.03.2014
Subjects
CHECKS FOR WINGS
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
FIXED CONSTRUCTIONS
KEYS
LOCKS
SAFES
WINDOW OR DOOR FITTINGS
WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING
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Bibliography:Application Number: TW20130220486U