Title:
【考案の名称】さく岩機の防振装置
Document Type and Number:
Japanese Patent JPS5928474
Kind Code:
U
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Inventors:
Toshio Oi
Application Number:
JP12192482U
Publication Date:
February 22, 1984
Filing Date:
August 11, 1982
Export Citation:
International Classes:
B25D17/11; E21B1/00; (IPC1-7): B25D17/11; E21C3/00
Domestic Patent References:
| JPS5499003A | 1979-08-04 |