Document Type and Number:
Japanese Patent JPS5238111
Kind Code:
Y1
Application Number:
JP3175368U
Publication Date:
August 30, 1977
Filing Date:
April 18, 1968
Export Citation:
International Classes:
H03F1/30; G01J1/16; G01J1/44; (IPC1-7): H03F1/30; G01J1/16