Engineering
TAGS
| 23J | Switches for Appliances |
| 32C | Miniature Fuses |
| 39 | Electronic Tubes |
| 40C | Capacitors and Resistors for Electronic Equipment (Capacitors) |
| 40R | Capacitors and Resistors for Electronic Equipment (Resistors) |
| 48 | Electromechanical Components and Mechanical Structures for Electronic Equipment |
| 48B | Connectors |
| 48D | Mechanical Structures for Electronic Equipment |
| 49 | Piezoelectric and Dielectric Devices for Frequency Control and Selection |
| 51 | Magnetic Components and Ferrite Materials |
| 94 | All-or-Nothing Electrical Relays |
| 104 | Environmental Conditions, Classifications and Methods of Test |
| 110 | Optoelectronic, Display and Imaging Devices |