Document Type and Number:
Japanese Patent JPS5338326
Kind Code:
U
Application Number:
JP12023676U
Publication Date:
April 04, 1978
Filing Date:
September 07, 1976
Export Citation:
International Classes:
G03B21/46; G03D15/04; (IPC1-7): G03D15/04
Domestic Patent References:
| JP44020188A |