|
GB591975A
|
|
An improved armature structure for electro-magnetic apparatus
|
|
GB580668A
|
|
An improved fire protective device for cinema film projectors
|
|
GB590685A
|
|
Improvements in lens mount assemblies for motion picture projectors
|
|
GB584924A
|
|
Improvements in gramophone record changing devices
|
|
GB569839A
|
|
An electrical course indicating navigation instrument
|
|
US2426978A
|
|
Record changer for phonographs
|
|
GB569141A
|
|
Improvements in record changers for gramophones
|
|
GB564853A
|
|
Improvements in automatic record changing devices for gramophones
|
|
GB564851A
|
|
Improvements in automatic record changing devices for gramophones
|
|
GB564852A
|
|
Improvements in automatic record changing devices for gramophones
|
|
US2424132A
|
|
Automatic phonograph record changer
|
|
GB565351A
|
|
An electromagnetic course-indicating navigation instrument
|
|
GB565010A
|
|
Improvements in or relating to direction finding systems, preferably for short wave or ultra short wave direction finding
|
|
GB562923A
|
|
Arrangements in pressure medium driven remote control systems
|
|
US2392111A
|
|
Automatic record changer for phonographs
|
|
GB568663A
|
|
Improvements in automatic record changers for gramophones
|
|
US2432500A
|
|
Earth inductor generator
|
|
US2376359A
|
|
Remote control system
|
|
US2388263A
|
|
Radio direction finding system
|
|
GB561993A
|
|
Improvements in frequency modulated transmitters
|
