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GB191512516A
|
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Improvements in Switches for Resistances.
|
|
GB191409115A
|
|
Improvements in, and relating to Liquid Level Indicators.
|
|
US1165513A
|
|
Cinematograph apparatus.
|
|
GB191404535A
|
|
Improvements in and relating to Kinematograph Projectors.
|
|
GB191321969A
|
|
Improvements in Kinematograph Projectors.
|
|
GB191307325A
|
|
Device for Preventing Film Catching Fire in Kinematograph Projectors.
|
|
GB191223964A
|
|
Improvements in Friction Clutches for use with Kinematograph Machines.
|
|
GB191223155A
|
|
Improvements in Arc Lamps.
|
|
GB191124333A
|
|
Improvements in Hand Feed Arc Lamps.
|
|
GB191114573A
|
|
Improvements in Kinematographs of the Maltese Cross Type.
|
|
US1032065A
|
|
Condenser-cell for kinematograph and optical lanterns.
|
|
GB191010977A
|
|
Improvements in Condenser Cells to be used in conjunction with Lanterns for Kinematograph and Optical Projection.
|
|
GB191007815A
|
|
Improvements in Kinematograph Projectors.
|
|
GB191007816A
|
|
Improvements in Kinematograph Projectors.
|
|
GB190913030A
|
|
Improvements in Kinematograph Cameras and Projectors.
|
|
GB190907184A
|
|
Improvements in Safety Devices to Prevent the Spread of Fire when a Kinematograph Film is Ignited.
|
|
GB190900673A
|
|
Improvements relating to Searchlights.
|
|
GB190825666A
|
|
Improvements in Safety Devices to Prevent the Spread of Fire when a Kinematograph Film is Ignited.
|
|
GB190824677A
|
|
Improvements in Carburetters for Oxy-hydrogen Searchlights and other Projecting Lanterns.
|
|
GB190824676A
|
|
Improvements in Burners for Mixed Gases.
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