Document Type and Number:
Japanese Patent JPS55137511
Kind Code:
U
Application Number:
JP3559479U
Publication Date:
September 30, 1980
Filing Date:
March 22, 1979
Export Citation:
International Classes:
G01L21/30; H01F5/00; H01F7/20; (IPC1-7): H01F5/00; G01L21/30; H01F7/20