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H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02K—DYNAMO-ELECTRIC MACHINES
H02K19/00—Synchronous motors or generators
H02K19/16—Synchronous generators
H02K19/22—Synchronous generators having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators
H02K19/24—Synchronous generators having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators with variable-reluctance soft-iron rotors without winding
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FR21730A1919-01-301919-01-30
Transmitting station for telegraphy and wireless telephony
ExpiredFR21730E
(en)
Transmitting station for telegraphy and wireless telephony. (improvement to patent n ° 492,414, of August 10, 1915, by mm. j. bethenod and e. girardeau.)