Document Type and Number:
Japanese Patent JPS5133342
Kind Code:
U
Application Number:
JP10596074U
Publication Date:
March 11, 1976
Filing Date:
September 02, 1974
Export Citation:
International Classes:
H03H1/00; G02B27/00; H03H7/52; H03H11/02; (IPC1-7): H03H7/52; G02B27/00
Domestic Patent References:
| JPS4932565B1 | 1974-08-31 | |||
| JPS4969095A | 1974-07-04 |