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Scott D. Veenhuizen
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Kent, WA, US
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last 30 patents
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Patent Grant
Down hole pressure intensifier and drilling assembly and method
Patent number
5,787,998
Issue date
Aug 4, 1998
Flowdril Corporation
Thomas A. O'Hanlon
E21 - EARTH DRILLING MINING
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Patent Grant
Fluid jet drilling nozzle and method
Patent number
4,306,627
Issue date
Dec 22, 1981
Flow Industries, Inc.
John B. Cheung
E21 - EARTH DRILLING MINING