Document Type and Number:
Japanese Patent JPS5255311
Kind Code:
Y2
Application Number:
JP6160574U
Publication Date:
December 14, 1977
Filing Date:
June 05, 1974
Export Citation:
International Classes:
E04F15/14; E04B1/68; E04F13/06; (IPC1-7): E04F13/06; E04F15/14
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