D INSTR DE PREC ET DYNAMO PHAR has a total of 12 patent applications. Its first patent ever was published in 1920. It filed its patents most often in France. Its main competitors in its focus markets audio-visual technology, telecommunications and electrical machinery and energy are TARDIEU VICTORIEN, ALCATEL DIAL FACE SPA and ROBERT LAMBERT MURRAY.
| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 12 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Telecommunications | |
| #3 | Electrical machinery and energy | |
| #4 | Basic communication technologies |
| # | Technology | |
|---|---|---|
| #1 | Telephonic communication | |
| #2 | Loudspeakers and microphones | |
| #3 | Advertising | |
| #4 | Selecting | |
| #5 | Amplifiers | |
| #6 | Dynamo-electric machines | |
| #7 | Electric switches |