| IPC 6 English version | Class G08 |
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SECTION G | – PHYSICS |
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G 08 | SIGNALLING (indicating or display devices per se G 09 F; transmission of pictures H 04 N) |
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SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS (signalling arrangements on vehicles B 60 Q, B 62 D 41/00; railway signalling systems or devices B 61 L; on cycles B 62 J 3/00, B 62 J 6/00; safes or strong-rooms with alarm devices E 05 G; signalling or alarm devices in mines E 21 F 17/18; lamps or shutters therefor F 21; sensitive measuring elements, see the appropriate subclasses of G 01; traffic control systems G 08 G; visual indicating means G 09; sound-producing devices G 10; radio or near-field calling systems H 04 B 5/00, H 04 B 7/00; selecting arrangements H 04 Q 7/00, H 04 Q 9/00; loudspeakers, microphones, gramohpone pick-ups or like acoustic electromechanical transducers H 04 R) |
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TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS (fluid pressure transmission systems F 15 B; sensing members for specific physical variables, see the relevant subclasses, e.g. of G 01, of H 01; indicators or recorders, see the relevant subclasses, e.g. G 01 D, G 09 F; mechanical means for transferring the output of a sensing member into a different variable G 01 D 5/00; self-balancing bridges G 01 R; position control in general G 05 D 3/00; mechanical control systems G 05 G; systems for transmitting "on/off" signals only, systems for transmitting alarm conditions G 08 B; order telegraph systems G 08 B 9/00; generating electric pulses H 03 K; coding, decoding or code conversion, in general H 03 M; transmission of digital information H 04 L; selective calling from one station to another H 04 Q 9/00) |
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TRAFFIC CONTROL SYSTEMS (guiding railway traffic, ensuring the safety of railway traffic B 61 L; arrangement of road signs or traffic signals E 01 F 9/00; radar systems or analogous systems, designed for traffic control G 01 S 13/91; sonar or lidar systems specially designed for traffic control G 01 S 15/88, G 01 S 17/88) |
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