Results 341 to 350 of about 1,123,828 (350)

drilling of rock

2009
openaire   +1 more source

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