Improvements in or relating to rotatable lens pedestals
DE1105302B
buoy
GB858461A
Improvements in or relating to buoys
GB798041A
Improvements in or relating to lamp holders for pre-focus electric lamps
GB695744A
Improvements in or relating to means for indicating variations in liquid level
GB692875A
Improvements in or relating to means for indicating variations in liquid level
GB603937A
Improvements in or relating to light signal apparatus for light buoys and the like
GB588832A
Improvements in or relating to gas controlled audible signalling apparatus
GB579730A
Light signal apparatus for light buoys and the like
GB479662A
Improvements in or relating to devices for measuring and/or indicating the diffusion of light in, or the turbidity of fluids and other transparent media
GB490617A
Improvements in or relating to gas-operated flashing apparatus
GB436497A
Improvements in or relating to apparatus for use when welding
GB419109A
Improvements in or relating to illuminating apparatus for lighthouses, beacons and the like
GB418996A
Improvements in or relating to illuminating apparatus for lighthouses, beacons and the like
GB367423A
Improvements in or relating to devices for indicating to aviators the direction and velocity of ground winds
GB339899A
Improvements in and relating to porous masses for the storage of compressed gases
GB336535A
Improvements in or relating to valves for oxygen containers or bottles
GB339202A
Improvements in or relating to gas light signal apparatus
GB334486A
Improvements in or relating to pendulum controlled lens apparatus