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DK22566C
(en)
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Device for self-acting Telephone Systems.
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DK31791C
(en)
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Device by Telephone System.
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DK26696C
(en)
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Device at Møllestene.
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DK35237C
(en)
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Telephone system.
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DK19777C
(en)
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Device by Telephone Exchange Systems.
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DK20156C
(en)
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Device by Telephone Exchange Systems.
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DK20272C
(en)
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Device by Telephone Exchange Systems.
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DK20739C
(en)
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Device by Telephone Exchange Systems.
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DK21931C
(en)
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Automatic Telephone System.
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DK27604C
(en)
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Telephone exchange system.
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DK34928C
(en)
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Telephone exchange system.
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DK21902C
(en)
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Device for Diaphragms for Speakerphone.
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AT89309B
(en)
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Telephone switching system.
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DK21825C
(en)
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Device at Kaffekværne.
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DK22699C
(en)
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Device at Spareure.
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DK23026C
(en)
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Device at Smedeesser.
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DK23393C
(en)
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Device at Spareure.
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DK23425C
(en)
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Device at Haandjærn.
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DK24561C
(en)
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Device at Kogekar.
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DK24638C
(en)
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Device at Laase.
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DK19160C
(en)
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Device by Telephones.
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DK21774C
(en)
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Device by Dejdelemaskiner.
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DK22294C
(en)
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Device by Fiskeruser.
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DK24866C
(en)
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Device by Stollemaskiner.
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DK20429C
(en)
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Device by Telephone Exchange Systems.
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