Document Type and Number:
Japanese Patent JPS53122943
Kind Code:
U
Application Number:
JP2756677U
Publication Date:
September 30, 1978
Filing Date:
March 08, 1977
Export Citation:
International Classes:
G03B31/00; G11B5/02; G11B20/00; H03G3/00; H03G3/20; (IPC1-7): G03B31/00; G11B5/02; H03G3/00