Document Type and Number:
Japanese Patent JPS4949411
Kind Code:
A
Application Number:
JP9308572A
Publication Date:
May 14, 1974
Filing Date:
September 16, 1972
Export Citation:
International Classes:
E02B3/18; E02D19/04; E02B3/04; E02D5/02; (IPC1-7): E02D19/04