|
GB667804A
|
|
An improved artificial horizon
|
|
GB554902A
|
|
An improved daylight signalling lamp
|
|
GB518285A
|
|
Improvements in means for determining the draft and trim of a ship
|
|
GB512346A
|
|
Improvements in the suspension of compasses and other nautical instruments
|
|
GB488300A
|
|
Improvements in artificial horizons
|
|
GB493717A
|
|
Improvements in compass cards
|
|
GB471983A
|
|
Improvements in clinometers
|
|
GB451677A
|
|
Improvements in bearing instruments for use at sea
|
|
GB449614A
|
|
Improvements in liquid levels
|
|
GB433324A
|
|
An offshore distance finder
|
|
GB427446A
|
|
Improvements in gimbals and the suspension of nautical instruments
|
|
GB413074A
|
|
Improvements in mariners' compasses
|
|
GB395244A
|
|
Improvements in fogsignals
|
|
GB393035A
|
|
Improvements in mariners' compasses
|
|
GB366677A
|
|
Improvements in the lighting of ships' compasses
|
|
GB331722A
|
|
Improvements in sounding apparatus
|
|
GB321821A
|
|
Improvements in or relating to apparatus for measuring depths at sea
|
|
GB280787A
|
|
Improvements in chart tables
|
|
GB276857A
|
|
Improvements in electric ships' logs
|
|
GB262607A
|
|
Improvements in sounding machines
|
