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FIRST NATIONAL BANK AT LUBBOCK
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LUBBOCK, TX, US
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Patent Grant
Adjustable vane windmills
Patent number
4,183,715
Issue date
Jan 15, 1980
First National Bank of Lubbock
William L. Ducker
F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
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