Document Type and Number:
Japanese Patent JPS4953404
Kind Code:
U
Application Number:
JP9716172U
Publication Date:
May 11, 1974
Filing Date:
August 19, 1972
Export Citation:
International Classes:
F16B15/02; E01B3/00; E01B26/00; F16B15/00; (IPC1-7): E01B3/00