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BE374262A
(cs)
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FR3067878B1
(fr)
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Procede de charge de batteries pour un aeronef et systeme de stockage d'energie electrique
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US2652455A
(en)
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Conversation timing controlled in linefinders and repeaters
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CN86102390A
(zh)
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电磁开关的控制装置
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CA2152700C
(en)
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Contact arrangement for electrical apparatus
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BE374627A
(cs)
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CN202535402U
(zh)
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基于gprs+语音呼叫中心的远程控制系统
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US1556751A
(en)
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Automatic telephone system
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US1338318A
(en)
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Automatic telephone system
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US1293499A
(en)
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Automatic telephone system.
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US1448572A
(en)
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Telephone system
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SU1127061A1
(ru)
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Устройство дл пуска электродвигател посто нного тока
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Child
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The how and why of Electricity: A Book of Information for Non-technical Readers |
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US1523402A
(en)
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Telephone system
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US1283413A
(en)
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Telephone-exchange system.
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SU1709403A1
(ru)
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Устройство дл включени контактора посто нного тока
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US1614593A
(en)
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Automatic telephone system
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CN104242287B
(zh)
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无线电能传输系统浪涌抑制电路及方法
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BE347074A
(cs)
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SU862290A1
(ru)
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Щеточно-коллекторный узел электрической машины
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US1251768A
(en)
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Telephone-exchange system.
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US1719862A
(en)
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Rotary line switch
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US1268221A
(en)
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Automatic telephone-exchange system.
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FR3116951A1
(fr)
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Dispositif d’inertage d’une batterie, bloc d’alimentation, système et procédé d’inertage associés
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US1568180A
(en)
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Automatic telephone system
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