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GB793951A
|
|
Improvements in or relating to the cleaning of observation windows in vacuum apparatus
|
|
GB815051A
|
|
Improvements in or relating to vapour vacuum pumps
|
|
GB748376A
|
|
Improvements in or relating to vapour vacuum pumps
|
|
GB757920A
|
|
Improvements in or relating to vacuum pumps
|
|
GB779347A
|
|
Improvements in or relating to etching metals
|
|
GB748784A
|
|
Improvements in or relating to vacuum freezing and/or vacuum freeze drying methods and apparatus
|
|
GB770753A
|
|
Improvements in or relating to apparatus for the vaporisation of metals and metalloids
|
|
GB736512A
|
|
Improvements in or relating to cathode sputtering apparatus
|
|
GB702636A
|
|
Improvements in or relating to instruments for detecting, indicating and/or measuring linear displacements
|
|
GB747344A
|
|
Improvements in or relating to oil sealed rotary vacuum pumps
|
|
GB699330A
|
|
Improvements in or relating to movements for measuring or indicating instruments
|
|
GB705027A
|
|
Improvements in or relating to vacuum pumping apparatus
|
|
GB734757A
|
|
Improvements in or relating to vapour vacuum pumps
|
|
US2696344A
|
|
Vapor vacuum pump
|
|
GB754102A
|
|
Improvements in or relating to a method and apparatus for vapourising materials, forexample, metal in vacuum
|
|
GB740744A
|
|
Improvements in or relating to display devices
|
|
GB754101A
|
|
Improvements in or relating to cleaning of surfaces by subjecting the surfaces to electronic bombardment
|
|
US2664303A
|
|
Cone and socket pipe joint with cooperating locking lug
|
|
GB721667A
|
|
Improvements in or relating to vapour vacuum pumps
|
|
GB700978A
|
|
Improvements in or relating to vapour vacuum pumps
|
