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US3179865A
|
|
Self-balancing servo system with super-imposed alternating current for reducing static friction
|
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GB889860A
|
|
Improvements in or relating to servo-mechanisms
|
|
GB748978A
|
|
Improvements in measuring and detecting apparatus
|
|
US2878674A
|
|
Measuring and detecting apparatus
|
|
US2739803A
|
|
Processes and appliances for measuring and setting instrument
|
|
GB718300A
|
|
Improvements in processes and appliances for measuring and setting instrument
|
|
US2680224A
|
|
Standard sources of electromotive force
|
|
GB695405A
|
|
Improvements in or relating to standard sources of electromotive force
|
|
GB691312A
|
|
Improvements in and relating to methods of and means for measurement
|
|
US2717151A
|
|
Means for measurement
|
|
US2076879A
|
|
Radial field relay
|
|
GB447516A
|
|
Improvements in and relating to moving coil relays
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