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US4019038A
|
|
Correlators
|
|
US3927566A
|
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Flowmeters
|
|
GB1401272A
|
|
Flowmeters
|
|
GB1430062A
|
|
Flowmeters
|
|
GB1405456A
|
|
Frequency control circuits
|
|
GB1398381A
|
|
Correlators
|
|
GB1393103A
|
|
Flow velocity measurement
|
|
GB1373755A
|
|
Preservation of a stored voltage
|
|
GB1369591A
|
|
Vector mechanisms
|
|
GB1355050A
|
|
Differential pressure cells
|
|
GB1369427A
|
|
Vector mechanisms
|
|
GB1327751A
|
|
Devices for measuring fluid velocities
|
|
GB1324632A
|
|
Measuring the velocity of flow of an electrically conductive fluid
|
|
GB1332292A
|
|
Arrangements for altering the frequency of an electrical signal
|
|
GB1313508A
|
|
Measurement of gas mixture properties
|
|
GB1281888A
|
|
Improvements in or relating to the measurement of an area
|
|
GB1254002A
|
|
Improvements in or relating to pneumatic-mechanical transducer
|
