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Douglas A. Bourne
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Valley Stream, NY, US
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last 30 patents
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Patent Grant
Universal trip valve operators and trip actuating seismic vibration...
Patent number
5,048,552
Issue date
Sep 17, 1991
Douglas A. Bourne
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Valve operators
Patent number
4,869,459
Issue date
Sep 26, 1989
Douglas A. Bourne
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...