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Joseph M. O'ffill
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Shawnee Mission, KS, US
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last 30 patents
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Patent Grant
Hydraulic valve
Patent number
4,262,878
Issue date
Apr 21, 1981
Shale Oil Science & Systems, Inc.
Joseph M. O'ffill
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Patent Grant
Modular heat exchange apparatus
Patent number
4,260,371
Issue date
Apr 7, 1981
Shale Oil Science & Systems, Inc.
Joseph M. O'ffill
F27 - FURNACES KILNS OVENS RETORTS