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AT13115B
(en)
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Device for the transmission of electrical energy.
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CH24161A
(en)
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Telephone cables
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DK3629C
(en)
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Telegraph.
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ES28358A1
(en)
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Improvements made to phones.
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DK3948C
(en)
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Device by Pinols.
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DK3922C
(en)
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Device by Nodeblade.
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DK4301C
(en)
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Device by Chromoscopes.
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GB190122383A
(en)
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An Improved Pulley-block.
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DK4033C
(en)
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Device by Acetylene Generators.
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DK3643C
(en)
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Devices by Projectiles.
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FR337271A
(en)
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Telephone transmitter
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DK4405C
(en)
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Power regulator.
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DK4331C
(en)
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Electrical Regulator.
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ES27835A1
(en)
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An apparatus-out.
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DK4279C
(en)
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Electrochemical Copy Telegraph.
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CH24498A
(en)
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Telephone system
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CA89786A
(en)
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Telephone transmitter
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DK3864C
(en)
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Devices by looms.
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CA92405A
(en)
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Telephone transmitter
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CA86234A
(en)
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Telephone transmitter
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CA83867A
(en)
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Telephone transmitter
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DK3840C
(en)
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Electric Switch.
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CA73830A
(en)
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Buck saw
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DK4145C
(en)
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Alterkalk.
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DK4085C
(en)
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Alterkalk.
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