Document Type and Number:
Japanese Patent JPS4874578
Kind Code:
A
Application Number:
JP419972A
Publication Date:
October 08, 1973
Filing Date:
January 06, 1972
Export Citation:
International Classes:
B09B3/00; E04C2/20; B29B11/00; B29B17/00; E04C2/22; (IPC1-7): E04C2/22