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US5052503A
(en)
|
|
Eccentric drilling tool
|
|
JPH0345761Y2
(enEXAMPLES)
|
|
|
|
US2819043A
(en)
|
|
Combination drilling bit
|
|
US5467837A
(en)
|
|
Rotary drill bit having an insert with leading and trailing relief portions
|
|
US3361481A
(en)
|
|
Rotating cutter bit
|
|
US20100244545A1
(en)
|
|
Shearing Cutter on a Degradation Drum
|
|
US4083605A
(en)
|
|
Ripper tooth
|
|
NO309288B1
(no)
|
|
Ledekile-anordning
|
|
US5054217A
(en)
|
|
Hard insert for ice/snow clearing tool
|
|
CA1108596A
(fr)
|
|
Outil de forage a haut rendement a attaque rapide de la carotte
|
|
US6915867B2
(en)
|
|
Earth penetrating rotary drill bit with helical ports
|
|
CH636797A5
(fr)
|
|
Outil de percage.
|
|
US5704438A
(en)
|
|
Rotary borer
|
|
BE461369A
(enEXAMPLES)
|
|
|
|
FR2420643A1
(fr)
|
|
Procede et outil pour le decoupage de mineraux par arrachage mecanique et projection de jets d'eau
|
|
CA2367009C
(en)
|
|
Whipstock casing milling system
|
|
JP6920774B1
(ja)
|
|
枝切用鋸
|
|
EP0169872A1
(en)
|
|
FLOOR ANCHORING SYSTEM.
|
|
US2699930A
(en)
|
|
Coal planing machine head and cutter arrangement thereon
|
|
US3056202A
(en)
|
|
Powered cutting tools
|
|
CN210422623U
(zh)
|
|
带缓冲装置的盾构机切刀
|
|
HU176912B
(hu)
|
|
Peredvizhnoj mekhanizm kreplenija hhita
|
|
BE469409A
(enEXAMPLES)
|
|
|
|
EP0874126A1
(fr)
|
|
Procédé et dispositif de forage par percussion et rotation simultanée
|
|
JPH07259470A
(ja)
|
|
発破孔のノッチ形成装置及びノッチ形成方法
|