Document Type and Number:
Japanese Patent JPS5243141
Kind Code:
Y2
Application Number:
JP3017873U
Publication Date:
September 30, 1977
Filing Date:
March 08, 1973
Export Citation:
International Classes:
E04B1/86; B32B3/24; E04C2/34; (IPC1-7): E04C2/34; E04B1/86