Hinge mechanism for glasses with axial rotation, automatic return and extra-opening of the rod
A Standard patent application filed on 29 May 1997 credited to Frare, Silvano
Details
Application number :
31737
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
Hinge mechanism for glasses with axial rotation, automatic return and extra-opening of the rod