|
US2335163A
|
|
Photoelectric mechanical reset regulator
|
|
US2332627A
|
|
Kinetic reset regulator
|
|
US2366246A
|
|
Regulating instrument
|
|
US2341765A
|
|
Compound thermostatic bulb
|
|
US2264263A
|
|
Multisensitivity variable responsive instrument
|
|
US2351326A
|
|
Predetermining system
|
|
US2264256A
|
|
Damped photoelectric indicating controller
|
|
US2264262A
|
|
Valve positioner
|
|
US2207344A
|
|
Recording potentiometer
|
|
US2268285A
|
|
Plant control method and system
|
|
GB516338A
|
|
Improvements in or relating to electric methods of and systems for governing the recording or controlling action of an instrument
|
|
GB514990A
|
|
Improvements in or relating to electrical control systems
|
|
GB512984A
|
|
Improvements in or relating to electrical control systems
|
|
US2209717A
|
|
Recording and controlling system
|
|
US2218464A
|
|
Throttling regulator for electric furnaces
|
|
US2178538A
|
|
Instrument spring link movement
|
|
US2264261A
|
|
Damped regulator
|
|
US2173061A
|
|
Damped chart-pen lifter
|
|
US2274266A
|
|
Isosensitive regulator
|
|
US2159504A
|
|
Disk chart hub
|
