(In-process, post-process and bench-) gauges and components parts thereof for dimensional checking of (mechanical) pieces or elements; automatic machines and manual or semi-automatic benches for checking, gauging, selecting (mechancial) pieces, for dimensional inspecting, weight checking, temperature checking and correct assembly checking; logic circuits, control circuits and driving circuits for controlling, regulating and driving machine tools, transfer machines and component parts thereof; electronic equipments, such as data loggoing and processing systems, controllers and computers for performance measurements and for control of machines tools and the like.