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US2972310A
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Electric motor
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Circulating pump
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GB858074A
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Improvements in or relating to circulating pumps for central heating systems
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Electric drive motor for pumps
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Circulation pump for central heating with canned motor and two-part housing
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GB771737A
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Improvements in and relating to d.c. exciter units for synchronous alternators
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Device compensating the axial thrusts exerted on the shaft carrying the turbine's wheel of circulating pumps
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Circulation pump
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Circulation pump
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Monitoring device for centrifugal pumps
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CA619993A
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Circulating pump
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CA621704A
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Electric motor
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CA506117A
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Pump shaft thrust compensating means
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