Document Type and Number:
Japanese Patent JPS56100501
Kind Code:
U
Application Number:
JP18264179U
Publication Date:
August 07, 1981
Filing Date:
December 28, 1979
Export Citation:
International Classes:
E02D17/18; E01C1/00; E02D17/00; (IPC1-7): E01C1/00; E02D17/00
Domestic Patent References:
| JPS5325132U | 1978-03-03 |