Kwong-Kwan Yu

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Stanley, HK

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Patents Grantslast 30 patents

Information Patent Grant
Commutator for a d. c. motor
- Patent number 4,763,036
- Issue date Aug 9, 1988
- Johnson Electric Industrial Manufactory, Limited
- Kwong-Kwan Yu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER