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GB191105268A
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Improvements in or relating to Vibration Dampers for Instruments of Precision.
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GB191017091A
|
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Improvements in and relating to Wattmeters.
|
|
GB191105267A
|
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Improvements in Electrical Measuring Instruments.
|
|
US906498A
|
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Shunt or electrical resistance.
|
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US881642A
|
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Electric relay.
|
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GB190313027A
|
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Improvements in Rheostats
|
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GB190304444A
|
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Improvements relating to Dynamometers
|
|
US737982A
|
|
Rheostat.
|
|
US730061A
|
|
Reflecting-galvanometer.
|
|
GB190214547A
|
|
Improvements in and relating to Electrical Measuring Instruments.
|
|
GB190212463A
|
|
Improvements relating to Electrical Measuring Instruments
|
|
GB190212476A
|
|
Improvements relating to Electric Recording Apparatus Chiefly Designed for use in connection with Electric Measuring Instruments.
|
|
US758726A
|
|
Indicating or recording dynamometer.
|
|
GB190212469A
|
|
Improvements relating to Electrical Indicating and Recording Instruments.
|
|
US870861A
|
|
Means for supporting shafting.
|
|
US727041A
|
|
Index needle or pointer for electrical measuring instruments.
|
|
US716971A
|
|
Electrical measuring instrument.
|
|
US713259A
|
|
Recording electrical measuring instrument.
|
|
US713258A
|
|
Recording electrical measuring instrument.
|
|
US713257A
|
|
Recording electrical measuring instrument.
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