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Class Information
Number: 191/7
Name: Electricity: transmission to vehicles > Systems of distribution > Alternating-alternating
Description: Systems of distribution wherein the current source is alternating and is converted to an alternating current of different characteristics before reaching the point of use.


Patents under this class:

Patent Number Title Of Patent Date Issued
4795859 Control device for electric train Jan. 3, 1989



 
 
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