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GB334953A
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Improvements in or relating to synchronous alternating current dynamo electric machines
|
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US1571630A
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High-tension circuit breaker
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|
|
High tension circuit breaker
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GB227849A
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An improved electromagnetic percussive tool
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Electromagnetic tool
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GB238116A
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Improvements in reciprocating electro-magnetic motors
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GB232092A
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An improved method of and apparatus for effecting the commutation of electric currents
|
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Device for the distant control of a movable member
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GB221041A
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An electrical installation for the operation of a movable body from a distance
|
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US1573003A
|
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Installation for operating reciprocating electric motors
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GB214393A
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Improvements in installations for operating reciprocating electric motors
|
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GB214702A
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Improvements in or relating to commutator dynamo-electric machines
|
|
US1617394A
|
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Electric driving installation
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GB210482A
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Improvements in and relating to variable-frequency alternatingcurrent generators
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