| 661 | Electronic Publishers | Company Product |
| 662 | Electronic Pulse Counters | Company Product |
| 663 | Electronic Pulse Generators | Company Product |
| 664 | Electronic Pulse Meters | Company Product |
| 665 | Electronic Pump Controller | Company Product |
| 666 | Electronic Queue Numbering Systems | Company Product |
| 667 | Electronic r & d | Company Product |
| 668 | Electronic Relays | Company Product |
| 669 | Electronic Remote Controllers | Company Product |
| 670 | Electronic Research & Development | Company Product |
| 671 | Electronic RF Generators | Company Product |
| 672 | Electronic Scales | Company Product |
| 673 | Electronic Scoreboards | Company Product |
| 674 | Electronic Scrap Disposal | Company Product |
| 675 | Electronic Scraps | Company Product |
| 676 | Electronic Screwdriver | Company Product |
| 677 | Electronic Soft Starters | Company Product |
| 678 | Electronic Spirit Level | Company Product |
| 679 | Electronic Starter | Company Product |
| 680 | Electronic Stereo Generators | Company Product |
| 681 | Electronic Sweep Generators | Company Product |
| 682 | Electronic Switches | Company Product |
| 683 | Electronic Synthesizers | Company Product |
| 684 | Electronic Table Tape Dispensers | Company Product |
| 685 | Electronic Tape Dispensers | Company Product |
| 686 | Electronic Television Component Pattern Generators | Company Product |
| 687 | Electronic Test Handlers | Company Product |
| 688 | Electronic Testing Equipment | Company Product |
| 689 | Electronic Time Recorded Machines | Company Product |
| 690 | Electronic Time Recorder Machines | Company Product |