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US3703314A
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Roll attitude correcting means, for tunneling machines
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Apparatus and method for testing rock
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Pilot cutter mounting assembly
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Cutter assembly
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Gage cutter
|
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US3572853A
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Rock bit mounting assembly
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US3583503A
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Mounting head assembly
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US3593812A
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Means for cutting rock
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US3550972A
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Rock bit assembly
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Cable reel mounting
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Machine guidance system and method
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Apparatus for forming inclined bores
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US810023A
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Collapsible die for wiring or beading.
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