Improvements introduced in the construction of a mechanical torpedo for submarines and surface vessels.
ES140092A1
Improvements introduced in the construction of a device-obstacle of double effect (electromechanical) to signal and destroy submarines and surface ships.
ES111407A1
Improvements in the systems to direct the trajectory of the torpedoes.
GB129009A
Improvements in or relating to Submarine Mines.
US1278319A
Apparatus for detecting and indicating the presence of submarine boats.
US1293740A
Apparatus for detecting and indicating the presence of submarine boats.
US1246073A
Device for protecting ships against submarine explosions.
US1286174A
Means for protecting ships from submarine explosions.
US1237883A
Ship protection against submarine explosions.
GB126047A
Improvements in Ships or Vessels.
US1286261A
Ship.
GB191506426A
Improvements in or relating to Explosive Booms.
GB191506365A
Method of and Apparatus for Discharging Projectiles and Marine Mines from Aircraft.
GB191504296A
Improvements in or relating to Ships.
GB191503853A
Means for Protecting Ships against Submarine Explosions.
GB191500509A
Improvements in Explosive Booms for the Defence of Ports and similar Places.
