Filed Feb. 6, 2019

Serial No. 79254580

Registered March 31, 2020

Registration No. 6,021,001

Class operating elements for machine tools being parts of machines, namely, handles, levers, cranks, wheels and knobs, in particular comprising a sensor and/or electronics for monitoring the status or function of the operating element; locking elements being parts of machines for securing workpieces or moving parts on machines, namely twist locks, locking bolts and ball lock pins, in particular comprising a sensor and/or electronics for monitoring the status or function of the locking element; clamping devices and spring-loaded clamping devices being parts of machines for fastening workpieces during processing, namely machining, grinding, drilling, milling, joining, welding or soldering, and for fastening moving parts on machines, namely spring plungers, in particular comprising a sensor and/or electronics for monitoring the status or function of the clamping device; tensioning devices being parts of machines for positioning components during processing, namely machining, grinding, drilling, milling, joining, welding or soldering, and for fastening moving parts of machines, namely toggle clamps, in particular comprising a sensor and/or electronics for monitoring the status or function of the tensioning device; 013; 019; 021; 023; 031; 034; 035; 023; 028; 044; 021; 023; 026; 036; 038