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US4416339A
(en)
|
|
Bit guidance device and method
|
|
FI106392B
(fi)
|
|
Porauslaite kallioporaa varten
|
|
BRPI0919066B1
(pt)
|
|
Aparelho de perfuração.
|
|
SU234301A1
(enrdf_load_stackoverflow)
|
|
|
|
US4484637A
(en)
|
|
Positioning control system for rock drill support apparatus
|
|
JPH02272189A
(ja)
|
|
ラム穿孔機
|
|
JP2591691B2
(ja)
|
|
掘削装置
|
|
JPS6332958B2
(enrdf_load_stackoverflow)
|
|
|
|
US6053629A
(en)
|
|
Vibration generating device
|
|
GB2425791A
(en)
|
|
A steering apparatus for a steerable drilling tool
|
|
US3547006A
(en)
|
|
Variable stroke percussion tool
|
|
CN221609903U
(zh)
|
|
一种旋转钻井导向器
|
|
CN110748296A
(zh)
|
|
一种机械指向式旋转导向钻井工具
|
|
US1588406A
(en)
|
|
Drilling machine
|
|
US887801A
(en)
|
|
Rock-drilling machine.
|
|
CN115522884B
(zh)
|
|
护筒装置及工程机械
|
|
JP2002021461A
(ja)
|
|
二重管式削孔機用スイベル
|
|
SU76679A2
(ru)
|
|
Гидромониторный бур дл проходки скважин
|
|
US2248824A
(en)
|
|
Rock drill rotation mechanism
|
|
US2249716A
(en)
|
|
Rock drill feed mechanism
|
|
SU647446A1
(ru)
|
|
Перфоратор дл бурени горных пород
|
|
SU692995A1
(ru)
|
|
Перфоратор
|
|
SU1454963A1
(ru)
|
|
Бурильный агрегат
|
|
SU1051289A1
(ru)
|
|
Исполнительный орган дл скважинного гидродобычного агрегата
|
|
KR200199072Y1
(ko)
|
|
트랙터용 쟁기의 방향전환장치
|