Document Type and Number:
Japanese Patent JPS5118737
Kind Code:
Y2
Application Number:
JP2377672U
Publication Date:
May 18, 1976
Filing Date:
February 26, 1972
Export Citation:
International Classes:
G03B31/06; G03B31/00; G11B23/44; G11B31/00; (IPC1-7): G11B31/00; G03B31/06