Document Type and Number:
Japanese Patent JPS5552717
Kind Code:
Y2
Application Number:
JP5338677U
Publication Date:
December 06, 1980
Filing Date:
April 28, 1977
Export Citation:
International Classes:
H05K9/00; E04F13/00; E04F13/21; H01F1/12; (IPC1-7): H05K9/00; E04B1/60; E04F13/00