Document Type and Number:
Japanese Patent JPS63142716
Kind Code:
U
Application Number:
JP3669287U
Publication Date:
September 20, 1988
Filing Date:
March 12, 1987
Export Citation:
International Classes:
G01C19/02; G01C19/00; G01C25/00; G01D3/028; (IPC1-7): G01C19/02; G01C25/00; G01D3/04