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Priority to JP1979074540UpriorityCriticalpatent/JPS631595Y2/ja
Publication of JPS55173643UpublicationCriticalpatent/JPS55173643U/ja
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Publication of JPS631595Y2publicationCriticalpatent/JPS631595Y2/ja
Method of and circuitry for generating information relating to speed of rotation in a circuit for controlling a brushless direct-current motor in order to regulate it with digital controls