|
GB720094A
|
|
Improvements in or relating to electric control circuits
|
|
GB710417A
|
|
Improvements in or relating to means for detecting heat radiation
|
|
GB695579A
|
|
Improvements in or relating to means for gauging or controlling humidity
|
|
GB667120A
|
|
Improvements in or relating to door securing devices and handles therefor
|
|
GB677525A
|
|
Improvements in or relating to ovens and the like
|
|
DE822284C
|
|
Device for thermostatic temperature control for electric heaters
|
|
GB652556A
|
|
An improved device for controlling temperatures
|
|
US2607005A
|
|
Thermionic tube control system
|
|
GB632033A
|
|
Improvements in or relating to devices for limiting electric current supply
|
|
GB618169A
|
|
Improvements in or relating to means for gauging linear dimensions
|
|
GB631595A
|
|
Improvements in or relating to means for controlling temperatures
|
|
CA491739A
|
|
Means for controlling temperatures
|
|
CA514611A
|
|
Radio receivers, electronic apparatus and the like
|
