Document Type and Number:
Japanese Patent JPH0450553
Kind Code:
Y2
Application Number:
JP2272988U
Publication Date:
November 27, 1992
Filing Date:
February 22, 1988
Export Citation:
International Classes:
G09B23/08; G01V7/14; (IPC1-7): G01V7/14; G09B23/08
Next Patent: SIDE RAIL FOR COMBINATIONAL OIL CONTROL RING