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CN100425800C
(zh)
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切割煤炭和岩石的切割齿组件及包括该组件的旋转滚筒
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US5052503A
(en)
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Eccentric drilling tool
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JPH0345761Y2
(index.php)
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US2819043A
(en)
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Combination drilling bit
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US5467837A
(en)
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Rotary drill bit having an insert with leading and trailing relief portions
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US3361481A
(en)
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Rotating cutter bit
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US4083605A
(en)
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Ripper tooth
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US4738063A
(en)
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Ground anchoring system
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NO309288B1
(no)
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Ledekile-anordning
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US5054217A
(en)
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Hard insert for ice/snow clearing tool
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CA1108596A
(fr)
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Outil de forage a haut rendement a attaque rapide de la carotte
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US6915867B2
(en)
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Earth penetrating rotary drill bit with helical ports
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CH636797A5
(fr)
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Outil de percage.
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US5704438A
(en)
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Rotary borer
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BE461369A
(index.php)
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NO176168B
(no)
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Skjæreledd for sagkjede
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CA2367009C
(en)
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Whipstock casing milling system
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JP6920774B1
(ja)
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枝切用鋸
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NZ528101A
(en)
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Cutting tool and system for coring a bowl using a lathe
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EP0169872A1
(en)
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FLOOR ANCHORING SYSTEM.
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US3056202A
(en)
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Powered cutting tools
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HU176912B
(hu)
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Peredvizhnoj mekhanizm kreplenija hhita
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BE469409A
(index.php)
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EP0874126A1
(fr)
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Procédé et dispositif de forage par percussion et rotation simultanée
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JPH07259470A
(ja)
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発破孔のノッチ形成装置及びノッチ形成方法
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