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GB118713A
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Improvements in and connected with Recording Instruments.
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GB191517185A
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An Improved Thermo-electric Couple.
|
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GB191514214A
|
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Improvements in Electrical Measuring Instruments.
|
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GB191230003A
|
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Variable Speed Mechanism for Belt or Friction Transmission.
|
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GB191029097A
|
|
Improvements in Radiation Pyrometers.
|
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GB190930478A
|
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Improvements in or relating to Pyrometers.
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|
US933543A
|
|
Pyrometer.
|
|
US959497A
|
|
Electrical measuring instrument.
|
|
GB190709580A
|
|
An Indicating or Recording Mechanism adapted to Show the Variations of Small Forces
|
|
GB190708205A
|
|
Improvements in Relay Mechanism for use in Indicating or Recording Instruments
|
|
GB190705904A
|
|
Improvements in Electric Measuring and Recording Instruments of the Thermal Type
|
|
GB190409123A
|
|
Improvements in Electric Arc Lamps.
|
|
GB190407610A
|
|
Improvements in and relating to Electric Arc Lamps
|
|
GB190406110A
|
|
Improvements in and relating to Electric Arc Lamps.
|
|
GB190319491A
|
|
Improvements in and relating to Arc Lamps.
|
|
US738426A
|
|
Electric-arc lamp.
|
|
GB190124863A
|
|
An Improved Method of Actuating the Carbon-feeding Mechanism of Electric Arc Lamps of the Open and Enclosed Types.
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