Document Type and Number:
Japanese Patent JPS5034937
Kind Code:
B1
Application Number:
JP3177970A
Publication Date:
November 12, 1975
Filing Date:
April 14, 1970
Export Citation:
International Classes:
G01M5/00; E01C23/01; E01C23/07; G01B5/00; G01M7/00; (IPC1-7): E01C23/07