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Slotted spool valve
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Patent number 6,810,664
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Issue date Nov 2, 2004
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Rawson Control Systems, Inc.
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Allan Louis Lorenc
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Astro capsule
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Patent number 4,505,472
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Issue date Mar 19, 1985
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Rawson Control Systems Inc.
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Allan L. Lorenc
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Amusement helicopter
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Patent number 4,492,372
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Issue date Jan 8, 1985
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Rawson Control Systems, Inc.
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Allan L. Lorence
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Ground control system
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Patent number 4,422,562
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Issue date Dec 27, 1983
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Rawson Control Systems, Inc.
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James L. Rawson
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES