Document Type and Number:
Japanese Patent JPS5350635
Kind Code:
U
Application Number:
JP13345576U
Publication Date:
April 28, 1978
Filing Date:
October 04, 1976
Export Citation:
International Classes:
G03B21/132; G03B23/00; (IPC1-7): G03B23/00
Domestic Patent References:
| JPS282364Y1 |