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

operating elements being parts for hand tools, implements and apparatus, hand-operated, namely handles, levers, cranks and wheels, in particular comprising a sensor and/or electronics for monitoring the status or function of the operating element; locking elements being parts for hand tools, implements and apparatus, hand-operated for securing workpieces or moving parts on hand tools, implements and apparatus, hand-operated, 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 for hand tools, implements and apparatus, hand-operated, for fastening workpieces during processing, namely machining, grinding, drilling, milling, joining, welding or soldering, and for fastening moving parts on hand tools, implements and apparatus, hand-operated, namely spring plungers, in particular comprising a sensor and/or electronics for monitoring the status or function of the clamping device; tensioning devices being hand-operated tools or being parts of hand-operated tools, implements and apparatus, namely toggle clamps, in particular comprising a sensor and/or electronics for monitoring the status or function of the tensioning device

Electronic monitoring instruments, other than for medical use, for monitoring the position and distance of workpieces and the force applied to workpieces during processing, namely machining, grinding, drilling, milling, joining, welding or soldering; sensors and sensor switches for measuring the position, distance and applied force of workpieces, workpiece holders and tools acting on a workpiece; electronic circuits for sensors and sensor switches; force sensors for measuring force applied on a workpiece, workpiece holder or tool acting on a workpiece; sensors for determining position; inductive, capacitive and magnetic proximity sensors and proximity switches; sensors, sensor switches and electronic circuits for detecting and monitoring the status and function of operating elements, locking elements, clamping devices and tensioning devices, in particular sensors, sensor switches and electronic circuits integrated in operating elements, locking elements, clamping devices and tensioning devices