Title:
FREQUENCY VARIATION RATE DETECTING RELAY
Document Type and Number:
Japanese Patent JPS5849039
Kind Code:
A
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Inventors:
OOTANI NORIO
Application Number:
JP14712881A
Publication Date:
March 23, 1983
Filing Date:
September 17, 1981
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H02H3/46; G01R23/10; (IPC1-7): H02H3/46
Attorney, Agent or Firm:
Masuo Oiwa