Document Type and Number:
Japanese Patent JPS4970267
Kind Code:
U
Application Number:
JP3998672U
Publication Date:
June 19, 1974
Filing Date:
April 06, 1972
Export Citation:
International Classes:
E02D3/10; D03D1/00; D03D3/02; E02D3/08; (IPC1-7): D03D1/00; D03D3/02; E02D3/08; E02D3/10