|
US2829026A
|
|
Recorder pen
|
|
US2818541A
|
|
Apparatus responsive to changes in frequency
|
|
US2810319A
|
|
Exposure meter
|
|
US2810867A
|
|
Method for pulling down magnets
|
|
US2743611A
|
|
Tank thermometer
|
|
US2766428A
|
|
Capacitance measuring circuit
|
|
US2829341A
|
|
Cell for moisture measurements
|
|
GB754130A
|
|
Improvements in or relating to arrangement for converting a mechanical torque to a d-c current
|
|
US2829226A
|
|
Wire wound resistor
|
|
US2820213A
|
|
Pin jack assembly
|
|
US2743612A
|
|
Thermometer
|
|
US2778709A
|
|
Recorder
|
|
US2750483A
|
|
Resistor bulb
|
|
US2753713A
|
|
Remote reading resistance thermometer
|
|
US2687512A
|
|
Apparatus responsive to phase rotation
|
|
US2778708A
|
|
Electrical recording apparatus
|
|
GB744789A
|
|
Improvements in or relating to safety arrangement for pressure vessels
|
|
US2681965A
|
|
Thermally actuated switch
|
|
US2817968A
|
|
Mounting arrangement for a thermometer or the like
|
|
US2713625A
|
|
Humidity-sensitive element
|
