Title:
【考案の名称】さく岩装置
Document Type and Number:
Japanese Patent JPS6085388
Kind Code:
U
Inventors:
Saito Tatsuo
Kenzo Hoshino
Yasuike Hidekatsu
Kenzo Hoshino
Yasuike Hidekatsu
Application Number:
JP17314583U
Publication Date:
June 12, 1985
Filing Date:
November 10, 1983
Export Citation:
International Classes:
E21B7/18; E21B1/00; E21B1/26; E21B10/18; E21B21/00; (IPC1-7): E21C3/20; E21B7/18; E21B10/18; E21C7/08