Document Type and Number:
Japanese Patent JPS57139507
Kind Code:
U
Application Number:
JP2531781U
Publication Date:
September 01, 1982
Filing Date:
February 26, 1981
Export Citation:
International Classes:
E04B1/16; E04B2/84; E04C5/06; E04G21/12; (IPC1-7): E04B1/60; E04B1/16; E04C5/06