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DE709603C
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Process for painting the pistons of electric lights with partial covering of the piston surface to be painted
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GB512226A
|
|
Improvements in and relating to the bearings of electrical regulating or control devices
|
|
GB508350A
|
|
Improvements in and relating to metal connecting caps for electrical circuit elements and methods of manufacturing the same
|
|
GB491898A
|
|
Improvements in and relating to devices for measuring and testing electric resistances
|
|
GB454364A
|
|
Improvements in the manufacturing of electric resistances
|
|
DE634256C
|
|
Device for coupling a plurality of coaxially arranged electrical switching elements, such as regulating resistors, variable capacitors or the like.
|
|
DE647182C
|
|
Electrical resistance or potentiometer
|
|
GB442032A
|
|
Improvements in and relating to adjustable resistances or potentiometers
|
|
GB416835A
|
|
High ohmic resistance provided with a protective coating of varnish
|
|
GB424721A
|
|
Method of activating cathodes in discharge tubes by means of gases or vapours
|
|
GB409583A
|
|
Improvements in and relating to discharge tubes with indirectly heated cathodes
|
|
GB416752A
|
|
Improvements in and relating to the manufacture of lustrous carbon resistances
|
|
DE631650C
|
|
Discharge tubes with resilient holder for electrodes
|
|
GB401542A
|
|
Improvements in electric discharge tubes
|
|
DE657382C
|
|
Rheostat
|
|
GB392815A
|
|
Improvements in or relating to electric discharge tubes
|
|
DE620183C
|
|
Discharge tubes with an anode closed like a cylinder and with a control grid of the same type
|
|
GB407068A
|
|
Improvements in or relating to regulating resistances, potentiometers, and the like
|
|
GB399967A
|
|
Improvements in or relating to the manufacture of high ohmic resistances
|
|
DE672717C
|
|
Process for the production of fixed or controllable electrical resistors from carbon-containing resistance masses
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