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DK19139C
(en)
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Device for Checking the Number of Phone Calls.
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DK12932C
(en)
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Device for Registering the Length of Telephone Calls.
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DK18730C
(en)
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Device for setting the time.
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DK18556C
(en)
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Remender Punching Device.
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DK19191C
(en)
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Device for Performing Kinematograms.
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DK22544C
(en)
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Coil for Charging Telephone Circuits.
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DK21191C
(en)
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Clock ringing device.
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DK18213C
(en)
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Device for Preventing Running.
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DK18827C
(en)
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Circuit Device for Telephone Systems.
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DK19160C
(en)
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Device by Telephones.
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DK18797C
(en)
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Apparatus for Steaming Groats.
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DK14748C
(en)
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Number Setting for Automatic Phones.
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DK18509C
(en)
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Telephone handover system.
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DK18316C
(en)
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Telephone system connection device with Selectors.
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DK20347C
(en)
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Device by Telephones.
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DK18956C
(en)
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Device for Microphones.
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DK22618C
(en)
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Coil for Charging Telephone Circuits.
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DK22593C
(en)
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Telephone system.
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DK18997C
(en)
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Telephone system.
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DK19778C
(en)
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Connection device for Telephone system with fully or semi-automatic Operation.
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AT82883B
(en)
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Automatic telephone system.
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ES58374A1
(en)
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Telephone.
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AT80094B
(en)
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Semi-automatic telephone system. Semi-automatic telephone system.
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DK19578C
(en)
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Connecting device for intermediate city Telephone traffic.
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DK19300C
(en)
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Potato Recording Device.
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