Decorative plant marker stake

Decorative plant marker stake

Delay stopper for a mine roof anchor and method of manufacture t

Destructible cartridge for securing anchor member

Detachable anchor bolt mixing head for use in mine roof...

Device and method for controlling time dependent parameter varia

Device and method for installing a rock bolt and a rock bolt...

Device for anchoring in and/or reinforcing hard materials

Device for drilling and anchoring and process for placing...

Device for drilling and anchoring and process for placing...

Device for rock bolting and for automized rock bolting and...

Dowel device for grouting in a drillhole

Drillable ground support bolt

Drilling apparatus and method for single pass bolting

Drilling device

Drilling means serving as ground anchor and method

Drilling rig

Dual diameter bushing/seal for mine roof bolt

Dual swiggle reinforcement system

Dual thrust anchor shell assembly