DK22309C
(en)
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Selector device for automatic telephone switching systems.
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DK31603C
(en)
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Selector for automatic or semi-automatic Telephone Systems.
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DK20140C
(en)
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Selector switch for Telephone Systems.
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DK23207C
(en)
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Selector rows for automatic Telephone systems.
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DK21931C
(en)
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Automatic Telephone System.
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GB118133A
(en)
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Machine Switching Telephone Systems.
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ES63803A1
(en)
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An automatic switching device for a thermotelephone.
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DK32541C
(en)
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Device for automatic telephone systems.
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DK36348C
(en)
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Device for automatic telephone systems.
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DK36536C
(en)
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Device for automatic telephone systems.
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DK36311C
(en)
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Device for automatic telephone systems.
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AT89309B
(en)
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Telephone switching system.
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DK23466C
(en)
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Selector for Making Connections in Telephone Systems.
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DK22566C
(en)
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Device for self-acting Telephone Systems.
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CH74895A
(en)
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Automatic switching device for thermal telephones
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ES51258A1
(en)
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Communication device for automatic telephone installations.
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DK31287C
(en)
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Coupling device for automatic or semi-automatic Telephone exchanges.
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AT82883B
(en)
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Automatic telephone system.
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DK18827C
(en)
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Circuit Device for Telephone Systems.
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AT80096B
(en)
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Selector for auto line telephone systems. Selector for auto line telephone systems.
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DK18356C
(en)
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Power surge transmitter for automatic telephone systems.
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DK19870C
(en)
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Test circuit for automatic Switches.
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DK14160C
(en)
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Connection device for automatic Telephone Stations.
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DK18676C
(en)
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Selects especially for automatic telephone exchanges.
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DK32769C
(en)
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Telephone system with Group selector setting.
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