|
US4692630A
|
|
Wavelength specific detection system for measuring the partial pressure of a gas excited by an electron beam
|
|
US4672203A
|
|
Two stage valve for use in pressure converter
|
|
US4381894A
|
|
Deposition monitor and control system
|
|
US4335961A
|
|
Refractive index measurement of optical thin-film
|
|
US4221964A
|
|
Control system for mass spectrometer
|
|
US4203199A
|
|
Solid state sensor
|
|
US4164861A
|
|
Leak standard generator
|
|
US4171341A
|
|
Solid state sensor
|
|
US4036167A
|
|
Apparatus for monitoring vacuum deposition processes
|
