BE432949A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE351277A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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US2860184A
(en)
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Telephone system serving both regular and paystation telephones
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BE361645A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE372322A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE355261A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE373940A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE433987A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE425800A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE353046A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE393936A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE416389A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE476206A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE432828A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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CH395203A
(de)
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Dispositif de concentration de lignes téléphoniques ou analogues
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BE536895A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE384791A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE359702A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE353777A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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CH197731A
(fr)
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Installation de téléphonie.
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CH191973A
(fr)
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Installation de téléphonie à longues distances.
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BE493591A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE374766A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE377986A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE367264A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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