Hermetic Sealing Of Openings, Joints, Passages, Or Slits (covers Or Protecting Devices Which Can Be Directly Removed, Or By Sliding Or Turning Subclass 300; Hermetic Sealing Of Watch Or Crystal With Special Pieces Subclass 373; Hermetically-sealed Electrical Switches H01h 23/06) [g04b 37/08] Patents (Class 968/327)

There are no patents to show for this class.