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GB191025065A
|
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Improvements in Portable Devices for Transforming Continuous Electric Currents.
|
|
GB190712712A
|
|
Means for Obtaining Unidirectional Electric Current from Spark Coils
|
|
GB190522317A
|
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Improvements in Small Induction Coils Worked from Street Electric Light Mains.
|
|
US804250A
|
|
Apparatus for the manufacture of induction-coils.
|
|
GB190305811A
|
|
Improvements in and Apparatus for the Manufacture of Induction Coils
|
|
GB189910406A
|
|
Improvements in Wireless Telegraphy.
|
|
GB189729778A
|
|
Improvements in Telegraphy.
|
|
GB189612859A
|
|
Improvements in Electric Transformers.
|
|
GB189513436A
|
|
Improvements in Electric Light Suspension Fittings.
|
|
GB189416599A
|
|
Regulating Electric Currents.
|
|
GB189323170A
|
|
Improvements in Electrical Transformers.
|
