|
BE416525A
(cg-RX-API-DMAC10.html)
|
|
|
|
CH198010A
(fr)
|
|
Installation téléphonique à batterie centrale.
|
|
US2886641A
(en)
|
|
Recorded message service for telephone paystations
|
|
GB118691A
(en)
|
|
Improved Automatic Telephone System.
|
|
BE417701A
(cg-RX-API-DMAC10.html)
|
|
|
|
CH106044A
(fr)
|
|
Installation téléphonique pour bureau privé annexe.
|
|
US1379068A
(en)
|
|
Measured-service telephone system
|
|
BE391036A
(cg-RX-API-DMAC10.html)
|
|
|
|
BE357752A
(cg-RX-API-DMAC10.html)
|
|
|
|
BE455605A
(cg-RX-API-DMAC10.html)
|
|
|
|
GB190314363A
(en)
|
|
Improvements in Telephone Call Recording Systems
|
|
CH99878A
(fr)
|
|
Installation téléphonique pour bureau central à commutations automatiques.
|
|
GB191218498A
(en)
|
|
Improved Circuit Arrangements for Automatic Telephone Systems.
|
|
BE341584A
(cg-RX-API-DMAC10.html)
|
|
|
|
BE372105A
(cg-RX-API-DMAC10.html)
|
|
|
|
CH100327A
(fr)
|
|
Installation téléphonique.
|
|
BE383636A
(cg-RX-API-DMAC10.html)
|
|
|
|
BE415527A
(cg-RX-API-DMAC10.html)
|
|
|
|
BE353077A
(cg-RX-API-DMAC10.html)
|
|
|
|
BE345811A
(cg-RX-API-DMAC10.html)
|
|
|
|
BE484722A
(cg-RX-API-DMAC10.html)
|
|
|
|
CH291061A
(fr)
|
|
Installation de télécommunication.
|
|
BE369910A
(cg-RX-API-DMAC10.html)
|
|
|
|
GB190228322A
(en)
|
|
Improvements in Telephone Exchanges
|
|
BE430209A
(cg-RX-API-DMAC10.html)
|
|
|