Robin L. Spain

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Olton, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Output monitoring system and method for an air transport material d...
- Patent number 7,450,019
- Issue date Nov 11, 2008
- Robin L. Spain
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Solar powered flush valve for center pivot irrigation system
- Patent number 6,405,995
- Issue date Jun 18, 2002
- Robin L. Spain
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Solar energy operated irrigation surge valve
- Patent number 4,535,813
- Issue date Aug 20, 1985
- Robin L. Spain
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...