| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Basic communication technologies | |
| #3 | Semiconductors | |
| #4 | Electrical machinery and energy | |
| #5 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Loudspeakers and microphones | |
| #2 | Semiconductor devices | |
| #3 | Tuning resonant circuits | |
| #4 | Amplifiers | |
| #5 | Advertising | |
| #6 | Emergency protective circuit arrangements | |
| #7 | Toys |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ouvrier John Michael | 3 |
| #2 | Marantz Saul B | 2 |
| #3 | Ouvrier J M | 2 |
| #4 | Hadley Dawson N | 2 |
| #5 | Smith Lester | 1 |
| #6 | Neil Hadley Dawson | 1 |
| #7 | Ouvrier J | 1 |
| #8 | Perkins Calvin C | 1 |
| #9 | Perkins Calvin Clement | 1 |
| #10 | Mirahem William C | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4805328A | Talking doll | |
| DE2824779A1 | Heat exchanger structure for electronic apparatus - has aluminium heat exchangers at air entry, and copper ones at exit where cooling air is warmest | |
| ES456320A1 | Speaker unit | |
| US4103737A | Heat exchanger structure for electronic apparatus | |
| US3631357A | Amplifier | |
| US3549808A | Protective circuit for speaker windings | |
| US3431884A | Tuning control for radio receivers | |
| CA893868A | Amplifier | |
| CA879220A | Tuning control for radio receivers |