Trademark applications and grants for Telecommunications Radioelectriques Et Telephoniques T R T. Telecommunications Radioelectriques Et Telephoniques T R T has 3 trademark applications. The latest application filed is for "IRT 1500"
Patent Application | Date |
---|---|
Arrangement for cancelling a composite echo signal 4,862,450 - 06/717,476 Guidoux August 29, 1 | 1989-08-29 |
Differential pulse code modulation arrangement, associated decoding arrangement and transmission system comprising at least such an encoding or decoding arrangement 4,860,314 - 07/084,658 Boisson August 22, 1 | 1989-08-22 |
Analogue scrambling system with dynamic band permutation 4,852,166 - 07/115,477 Masson July 25, 1 | 1989-07-25 |
Apparatus for detecting and discriminating phase jumps in a periodic signal and its application to a telephone tone signal with phase inversions 4,829,566 - 07/040,383 Lassaux , et al. May 9, 1 | 1989-05-09 |
Signal analysing and synthesizing filter bank system 4,799,179 - 06/822,503 Masson , et al. January 17, 1 | 1989-01-17 |
Mark Image Registration | Serial | Trademark Application Date |
---|---|
"IRT 1500" 1426352 73568706 |
IRT 1500 1985-11-15 |
"IRT 1500" 1432742 73568705 |
IRT 1500 1985-11-15 |
"SEMACOM" 1231697 73310889 |
SEMACOM 1981-05-18 |
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