Document Type and Number:
Japanese Patent JPS5023821
Kind Code:
B1
Application Number:
JP6030870A
Publication Date:
August 11, 1975
Filing Date:
July 11, 1970
Export Citation:
International Classes:
G01C21/24; G01S3/78; G01S3/782; G05D1/08; (IPC1-7): G01C21/24