|
US1160970A
|
|
Film-feed gearing.
|
|
GB191401901A
|
|
Improved Means for Projecting Animated Films.
|
|
GB191109287A
|
|
Improvements in Clock Synchronisers.
|
|
GB190920496A
|
|
Improvements in Electric Clocks and like Mechanisms.
|
|
CA114380A
|
|
Electric clock
|
|
CA112569A
|
|
Electric clock
|
|
US882186A
|
|
Secondary electric clock.
|
|
GB190505758A
|
|
Improvements in Secondary Electric Clocks and the like.
|
|
GB190415627A
|
|
Improvements in Electric Clocks.
|
|
GB190412375A
|
|
Improvements in Electric Clocks or Time Indicators and like Mechanism.
|
|
GB190228391A
|
|
Improvements in Automatic Fire-alarm Systems.
|
|
GB190223265A
|
|
Improvements in Automatic Fire-alarm Systems.
|
|
GB190125421A
|
|
Improvements in Automatic Fire Alarm Transmission.
|
|
CA223917A
|
|
Moving picture apparatus
|
