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Keenan; John
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EI
Business Address
4200 EAST SKELLY DR STE 1000 TULSA OK 74135 9184911100
Mailing Address
4200 EAST SKELLY DR STE 1000 TULSA OK 74135
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OK
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Information
Patent Grant
Hopper device for tractor vehicles
Patent number
4,084,853
Issue date
Apr 18, 1978
Keenan; Richard
Richard Keenan
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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