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AC synchronous motor having an axially laminated rotor
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Frequency meter
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Measuring systems
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Leveling device
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Hydraulic actuator
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Lifting and lowering mechanism for sonar dome
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Mine sweeping system
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Diode
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Improvements in and relating to thermocouple temperature alarm systems
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GB762042A
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Improvements in or relating to magnetic speed regulators
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Motor generator set
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Calibrated apparatus for measuring liquid levels
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Apparatus for measuring liquid levels
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Thermocouple monitoring system
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Fail-safe servo system
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Hydraulic valve
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Voltage regulator
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Power controlled switch for electric motors
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Thermocouple testing system
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CA613325A
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Hydraulic actuator
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