Locking device for the positive holding of a cover or grate in a frame
A Standard patent application filed on 30 November 1988 credited to Galvanetto, Francois
;
Spiess, Hansruedi
Details
Application number :
26391
Application type :
Standard
Application status :
CEASED
Under opposition :
No
Proceeding type :
Invention title :
Locking device for the positive holding of a cover or grate in a frame