Section G: Instrumentation
G1 Measuring; Testing
- G1A
Radiation and radiation-utilising measurement &c
(49Kb) - G1B
Chemical
analysis, testing &c (43Kb)
- G1C Gyroscopes (17Kb)
- G1D
Heat and temperature measurements; temperature-responsive actuators (25Kb)
- G1F
Surveying and navigating apparatus &c (27Kb)
- G1G
Acoustic measuring (25Kb)
- G1H
Liquid level control and indication &c (18Kb)
- G1J
Expressing measurement
&c (51Kb)
- G1K Speedometers; movement indicators (34Kb)
- G1L
Pressure gauges; engine indicators (25Kb)
- G1M Determining
dimensions and
shapes (37Kb)
- G1N Electrophysical and electrochemical
measurement &c (150Kb)
- G1R
Measuring fluid flow (22Kb)
- G1S Measuring and testing
physical properties (35Kb)
- G1U
Measuring or testing electric or magnetic variables (58Kb)
- G1W
Weighing;
dynamometers (66Kb)
- G1X Miscellaneous measurement (20Kb)
G2 Optics; Photography
- G2A Exposing radiation-sensitive
material (96Kb)
- G2C
Photographic radiation-sensitive materials and their processing (151Kb)
- G2E
Cinematography &c (51Kb)
- G2F Controlling Light (27Kb)
- G2J
Optical apparatus &c (62Kb)
- G2L Flashbulbs &c (11Kb)
- G2X
Miscellaneous photographic processes and apparatus (48Kb)
G3 Controlling; Timing
- G3B
Speed governors (24Kb)
- G3H Modifying fluid flow (21Kb)
- G3N
Automatic electric control systems (70Kb)
- G3P Fluid-pressure
servomotor
systems (45Kb)
- G3R Electric retroactive control (52Kb)
- G3T
Timing; date indicating (60Kb)
- G3U Automatic control
of electric variables (23Kb)
G4 Calculating; Counting; Checking; Signalling; Data handling
- G4A
Electric digital data processing (40Kb)
- G4B Mechanical
calculating apparatus (12Kb)
- G4C
Static storage of electric information (54Kb)
- G4D
Counting-apparatus (24Kb)
- G4F
Signalling systems (20Kb)
- G4G Electric analogue calculating;
optical signal
processing (26Kb)
- G4H Electric selective signalling (42Kb)
- G4M
Reading or sorting data-bearing members (20Kb)
- G4N
Supervisory, alarm
and safety systems (61Kb)
- G4P Fluid digital systems (15Kb)
- G4Q
Road, rail and like traffic control (29Kb)
- G4R Recognising
character forms
&c (23Kb)
- G4T Checking cash, attendances &c (15Kb)
- G4V
Coin and token freed apparatus (32Kb)
- G4X Coins &c (16Kb)
G5 dvertising; Education; Music; Recording
- G5C
Signs, indicators,
displays and advertising &c (47Kb)
- G5G Educational
appliances &c (37Kb)
- G5J
Sound-producing instruments &c (57Kb)
- G5R Recording
and playback (64Kb)
- G5X
Ciphering, flags, music &c (13Kb)