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BE350916A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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US1705054A
(en)
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Electromechanical telephone switching system
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BE489601A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE336765A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE468357A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE374022A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE503645A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE467644A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE341578A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE428087A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE416389A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE413526A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE350991A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE370229A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE482060A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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CH99878A
(fr)
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Installation téléphonique pour bureau central à commutations automatiques.
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BE431601A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE373940A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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CH126086A
(fr)
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Dispositif de réception d'impulsions électriques et de commande de l'orientation d'un commutateur pour installations téléphoniques.
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BE428120A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE359702A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE436878A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE476748A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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CH100816A
(fr)
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Installation téléphonique.
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BE400690A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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