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US4581943A
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Orbital-ball flow sensors
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EP0118791A1
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Liquid impedance flow detectors
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Flow detection apparatus
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Measurement of energy in flowing fluid
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Heat-meter and flow-meter apparatus
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Acoustic flow sensors
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Heat-meter and flow-meter apparatus
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Flow sensor probes
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Means and method for mounting temperature sensors
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Acoustic flow sensors
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Liquid flow sensors
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IL60044D0
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Liquid flow sensors
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Measurement of delivered thermal units
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Selective heating and cooling energy meter
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Heat meters
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Rotation sensor
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