CH257E -
Automatic locking device of the elevator belts for roller shutters, blinds etc. with automatic winding device for the unused part of the belt
- Google Patents
Automatic locking device of the elevator belts for roller shutters, blinds etc. with automatic winding device for the unused part of the belt
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.)
CH257D1897-11-191898-05-02
Automatic locking device of the elevator belts for roller shutters, blinds etc. with automatic winding device for the unused part of the belt
CH257E
(en)