Document Type and Number:
Japanese Patent JPS4847869
Kind Code:
A
Application Number:
JP8205671A
Publication Date:
July 06, 1973
Filing Date:
October 19, 1971
Export Citation:
International Classes:
G01P3/46; H02M7/04; H02M7/12; H02M7/21; (IPC1-7): G01P3/46