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Compartmented gas injection device
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Patent number 4,941,779
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Issue date Jul 17, 1990
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Shell Oil Company
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Thomas S. Dewitz
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Feed hopper design
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Patent number 4,869,622
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Issue date Sep 26, 1989
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Shell Oil Company
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James A. Salter
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Pressure compensated weigh system
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Patent number 4,838,738
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Issue date Jun 13, 1989
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Shell Oil Company
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James A. Salter
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Feed line-pulsed gas injection
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Patent number 4,834,588
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Issue date May 30, 1989
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Shell Oil Company
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James A. Salter
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Feed line design
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Patent number 4,830,545
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Issue date May 16, 1989
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Shell Oil Company
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James A. Salter
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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