|
US2639964A
|
|
Multiple diagram-frame recorder
|
|
US2579831A
|
|
Storing and reproducing measured quantities
|
|
US2447018A
|
|
Three-magnitude recorder
|
|
GB593708A
|
|
Improvements in multi-point measuring systems
|
|
US2516217A
|
|
Strip chart recorder
|
|
US2503052A
|
|
Electrical control and recording apparatus
|
|
US2393639A
|
|
Line-for-line recorder
|
|
GB599370A
|
|
Improvements in multiple electrical recording systems
|
|
GB587158A
|
|
Improvements in three magnitude recorders
|
|
GB581382A
|
|
Improvements in electrical indicating and recording systems
|
|
US2427355A
|
|
Flash print recorder
|
|
GB588093A
|
|
Improvements in apparatus for testing the physical qualities of materials
|
|
US2444410A
|
|
Resistance thermometer
|
|
GB567580A
|
|
Electric measuring systems
|
|
GB585800A
|
|
Electrical measuring systems
|
|
US2356763A
|
|
Method and means for testing materials
|
|
US2400828A
|
|
X-y-recorder
|
|
US2387760A
|
|
Multiple recorder
|
|
GB581977A
|
|
Systems for recording one or more variable magnitudes
|
|
US2359767A
|
|
Integrating measuring system
|
