Document Type and Number:
Japanese Patent JPS52169901
Kind Code:
U
Application Number:
JP7949776U
Publication Date:
December 23, 1977
Filing Date:
June 16, 1976
Export Citation:
International Classes:
E02D29/02; E04H1/00; (IPC1-7): E02D29/02; E04H1/00
Domestic Patent References:
| JP46000722U |