Document Type and Number:
Japanese Patent JPS5080457
Kind Code:
U
Application Number:
JP13585373U
Publication Date:
July 11, 1975
Filing Date:
November 24, 1973
Export Citation:
International Classes:
G03B13/02; G01C9/00; G01C11/24; (IPC1-7): G01C11/24
Domestic Patent References:
| JP33009731A |