Driven By Liquids Or Gases; Liquid Or Gaseous Drives Or Mechanically Controlled Secondary Clocks (winding Up By Pneumatic Means Subclass 39; Winding Up Automatically By Wind Power Subclass 63; Winding Up By Electrothermal Or Electro-pneumatic Arrangements Subclass 427; Thermoelectric Or Thermo-pneumatic Driving Mechanisms Subclass 495) [g04b 1/26] Patents (Class 968/21)

There are no patents to show for this class.