|
US6601620B1
|
|
Stump grinding bit and tip therefor
|
|
US6634444B2
|
|
Drill bit for trenchless drilling
|
|
US6546977B1
|
|
Stump grinding apparatus
|
|
US6702393B2
|
|
Rotatable cutting bit and retainer sleeve therefor
|
|
US6382277B1
|
|
Stump grinding wheel and cutting assemblies therefor
|
|
US6454360B1
|
|
Ground-working tools for use in power rakes
|
|
US6435434B1
|
|
Striker bar for disintegrating breakable materials
|
|
US6270165B1
|
|
Cutting tool for breaking hard material, and a cutting cap therefor
|
|
AU8378098A
|
|
Rock bolt anchoring system and method of use thereof
|
|
US5993116A
|
|
Filler-containing rock bolt anchoring system and method of preparation thereof
|
|
US5829540A
|
|
Mine roof drill bit and cutting insert therefor
|
|
US5407021A
|
|
Down-the-hole hammer drill having reverse circulation
|
|
US5301763A
|
|
Apparatus for drilling holes in mine roofs and a roof drill bit for use therein
|
|
US5375672A
|
|
Mine roof drill bit and cutting insert therefor
|
|
US5436396A
|
|
Stabilizing compositions and methods for stabilizing subterranean formations
|
|
US5163523A
|
|
Screw thread structure for percussion drill driver sub and case
|
|
US5220967A
|
|
Drill and self-centering cutter insert therefor
|
|
US5236499A
|
|
Sprayable wall sealant
|
|
US5090500A
|
|
Replaceable wear sleeve for percussion drill
|
|
US5060740A
|
|
Screw thread coupling
|
