Document Type and Number:
Japanese Patent JPS53134938
Kind Code:
U
Application Number:
JP4048977U
Publication Date:
October 25, 1978
Filing Date:
March 31, 1977
Export Citation:
International Classes:
G02B6/32; G02B3/00; H01B11/00; H01P3/00; H02G15/08; (IPC1-7): G02B5/14; G02B3/00; H01B11/00; H01P3/00