Results 301 to 309 of about 905,932 (309)

Hydraulic Rock Drill

Scientific American
openaire   +1 more source

rock investigation drilling

2014
openaire   +1 more source

Rock Drilling with Flame

Scientific American, 1947
openaire   +1 more source

Rock Drilling Bit

2013
openaire   +1 more source

hydraulic rock drilling

2014
openaire   +1 more source

Mershon's Improved Rock Drill

Scientific American, 1877
openaire   +1 more source

New Rock Drill

Scientific American
openaire   +1 more source

Drilled Shafts in Rock

2004
openaire   +1 more source

nozzle rock drilling bit

2014
openaire   +1 more source