Blast compression wave absorbing device
Blocking devices for hollow structures
Blocking devices for hollow structures
Blowdown and venting jet noise suppressor
Blower noise silencer
Blower pipe with silencer
Board building material, board building material producing...
Body-sensible acoustic device
Boiler noise suppressor
Borehole acoustic transmitter
Borehole logging tool with anchoring mechanism
Borehole seismic detector system employing stabilizers
Borehole seismic pulse generator and system
Borehole seismic receiver
Borehole seismic tool
Borehole tool actuating mechanism
Boron coated diaphragm for use in a loud speaker
Bottom diaphragm for transporter for a seismic energy source
Bounceless seismic wave generator
Bow dome sonar