Document Type and Number:
Japanese Patent JPS5219396
Kind Code:
Y2
Application Number:
JP4427772U
Publication Date:
May 04, 1977
Filing Date:
April 17, 1972
Export Citation:
International Classes:
E04B1/02; E04G21/16; E04G21/30; (IPC1-7): E04G21/30; E04B1/02; E04G21/16
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