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BE474347A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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US2194051A
(en)
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Telephone switch
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BE346568A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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US1106126A
(en)
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Operating device for electric switches.
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US1338318A
(en)
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Automatic telephone system
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US1358945A
(en)
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Measured-service telephone system
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US1339575A
(en)
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Machine-switching telephone-exchange system
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BE346565A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE371073A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE372233A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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CN112735907A
(zh)
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一种基于自驱动原理的断路器
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BE388990A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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GB209044A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE345811A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE402117A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE419410A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE491234A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE348402A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE395167A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE523427A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE376368A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE360598A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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CH95435A
(fr)
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Installation téléphonique semi-automatique.
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BE387272A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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GB105838A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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