Document Type and Number:
Japanese Patent JPS5241620
Kind Code:
U
Application Number:
JP12865875U
Publication Date:
March 24, 1977
Filing Date:
September 18, 1975
Export Citation:
International Classes:
G11B23/07; G11B23/06; G11B23/32; G11B23/34; (IPC1-7): G11B23/06
Domestic Patent References:
JP46032776U | ||||
JPS497741A | 1974-01-23 | |||
JPS4318513Y1 | 1968-07-31 | |||
JPS4715118A |