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GB157059A
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Improvements in telegraphic systems
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GB131704A
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Improvements in or relating to Telephone Repeaters or Relays.
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GB131092A
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Improvements in or relating to Audion or Lamp Relay or Amplifying Apparatus.
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GB130056A
|
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Improvements in or relating to Audion or Lamp Relay or Amplifying Apparatus.
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|
GB130014A
|
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Improvements in or relating to Dynamo Electric Machines.
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|
GB130012A
|
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Improvements in or relating to Audion or Lamp Relay or Amplifying Apparatus.
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|
GB129661A
|
|
Improvements in or relating to Audion or Lamp Relay or Amplifying Apparatus.
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|
GB128254A
|
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Improvements in or relating to Electromagnetic Vibratory or Oscillatory Apparatus.
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GB127318A
|
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Improvements in or relating to Audion or Lamp Relay or Amplifying Apparatus.
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|
GB130103A
|
|
Improvements in or relating to Audion or Lamp Relay or Amplifying Apparatus.
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|
GB131056A
|
|
Improvements in or relating to Audion or Lamp Relay or Amplifying Apparatus for use in Telephony.
|
|
US1234914A
|
|
Dynamo-electric machine.
|
|
GB107193A
|
|
Improvements in or relating to Dynamo Electric Machines.
|
|
GB190715453A
|
|
Improvements in and relating to Single Phase Electric Motors.
|
|
GB190703904A
|
|
Improvements in Dynamo Electric Machines.
|
|
GB190614697A
|
|
Improvements in and relating to Single-phase Alternating Current Series Motor.
|
|
GB190614696A
|
|
Improvements in a Single-phase Alternating Current Series Motor.
|
|
GB190500952A
|
|
Improvements in and relating to Electric Motors
|
|
GB190422631A
|
|
Improvements in Methods of Exciting Electro-magnets by Alternating Electric Currents
|
|
GB190419822A
|
|
Improvements relating to Starting Resistances for Electric Commutator Motors
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