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BE353777A
(cg-RX-API-DMAC7.html)
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US1570022A
(en)
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Automatic telephone system
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US1292827A
(en)
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Telephone-exchange trunking system.
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US1230639A
(en)
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Semi-automatic telephone system.
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SU200628A1
(ru)
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Релейный комплект для двухпроводных соединительных линий городских телефонных сетей
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US1174434A
(en)
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Telephone pay-station.
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US1316101A
(en)
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xmartin |
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BE400690A
(cg-RX-API-DMAC7.html)
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BE373940A
(cg-RX-API-DMAC7.html)
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BE370691A
(cg-RX-API-DMAC7.html)
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BE347074A
(cg-RX-API-DMAC7.html)
|
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BE351277A
(cg-RX-API-DMAC7.html)
|
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BE336765A
(cg-RX-API-DMAC7.html)
|
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BE361645A
(cg-RX-API-DMAC7.html)
|
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BE436502A
(cg-RX-API-DMAC7.html)
|
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BE432949A
(cg-RX-API-DMAC7.html)
|
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BE425916A
(cg-RX-API-DMAC7.html)
|
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CH156615A
(fr)
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Installation téléphonique à plusieurs bureaux.
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BE367264A
(cg-RX-API-DMAC7.html)
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BE483616A
(cg-RX-API-DMAC7.html)
|
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GB191207100A
(en)
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Improvements in or relating to Telephone Systems.
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BE476370A
(fr)
|
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Systèmes de télécommunications
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BE355261A
(cg-RX-API-DMAC7.html)
|
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BE476269A
(cg-RX-API-DMAC7.html)
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BE429139A
(cg-RX-API-DMAC7.html)
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