Document Type and Number:
Japanese Patent JPS4843643
Kind Code:
U
Application Number:
JP8707271U
Publication Date:
June 06, 1973
Filing Date:
September 23, 1971
Export Citation:
International Classes:
G03B21/43; G03B31/00; G03B31/04; H02P5/50; H02P5/52; (IPC1-7): G03B31/00; G03B21/43; H02P5/50