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Hydraulic disconnector
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Patent number 5,363,875
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Issue date Nov 15, 1994
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Honeywell Inc.
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Rudolf Vollmer
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E03 - WATER SUPPLY SEWERAGE
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Anti-backflow valve
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Patent number 4,895,180
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Issue date Jan 23, 1990
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Honeywell GmbH
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Rudolf Vollmer
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E03 - WATER SUPPLY SEWERAGE
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Actuating mechanism
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Patent number 4,500,036
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Issue date Feb 19, 1985
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Honeywell Inc.
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Rudolf Vollmer
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G05 - CONTROLLING REGULATING
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Boiler draft control device
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Patent number 4,452,184
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Issue date Jun 5, 1984
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Honeywell-Braukmann GmbH
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Rudolf Vollmer
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Control devices for heaters
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Patent number 4,294,402
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Issue date Oct 13, 1981
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Honeywell Inc.
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Rudolf Vollmer
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F24 - HEATING RANGES VENTILATING
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