Document Type and Number:
Japanese Patent JPS5160246
Kind Code:
U
Application Number:
JP13430974U
Publication Date:
May 12, 1976
Filing Date:
November 06, 1974
Export Citation:
International Classes:
G01S7/521; G02B7/40; G03B3/12; (IPC1-7): G03B3/12; G01S9/66