Document Type and Number:
Japanese Patent JPS57146925
Kind Code:
U
Application Number:
JP3168981U
Publication Date:
September 16, 1982
Filing Date:
March 06, 1981
Export Citation:
International Classes:
G01B7/14; B21J9/12; B21J9/20; (IPC1-7): B21J9/20; B21J9/12; G01B7/14