US3577101A
|
|
Electromechanical torsional oscillator
|
FR1534451A
|
|
Photoconductive layer
|
FR1441917A
|
|
Method and apparatus for the measurement of electromagnetic radiation
|
US3310701A
|
|
Photocathode for photoemissive cells
|
FR1341863A
|
|
Improvements made to photo-emitting cathodes
|
FR1251033A
|
|
Improvements to photoresist cells
|
FR1247240A
|
|
Improvements to anti-glare devices for headlights or projectors
|
FR1239095A
|
|
Amplifier lamp and image recorder
|
DE1093501B
|
|
Procedure for observing, measuring and regulating the temperature of nuclear reactors
|
DE1137575B
|
|
Procedure for the detection of overheated rail axles
|
DE1136848B
|
|
Measuring probe for measuring low temperature radiation
|
DE1145463B
|
|
Device for monitoring the non-circular bending point or for controlling a cutting device in a bending machine
|