US4654813A
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Electronic square root error indicator
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US4570745A
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Method and apparatus for minimizing pulsations in fluid transmission systems
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US4559610A
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Gas pumping system analog
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EP0107742A1
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Electrical analog of a piping network having a centrifugal compressor therein.
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US4475168A
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Performance indicator for compressor analogs
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US4424571A
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Reciprocating compressor analog
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US4417164A
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Mechanical valve analog
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US4419624A
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Apparatus for phase measurement
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US4429371A
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Relative horsepower indicator
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US4419735A
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Signal source for compressor analog
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US4404646A
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Piping network analog apparatus
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US3823608A
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Torque transducer
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US3581077A
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Electrical analog model for fluid flow transmission system
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US3283569A
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Method and apparatus for indicating performance characteristics of reciprocating piston machines
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US3276249A
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Ultrasonic measuring apparatus
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US2979940A
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Method for measuring forces within a system
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US2997124A
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Mechanical vibration reducing apparatus
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US2936041A
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Pulsation dampening apparatus
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US2951638A
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Gas pumping system analog
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CA759224A
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Performance indicator for piston engines
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