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Estate of Thomas E. Allen
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Tulsa, OK, US
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Patents Grants
last 30 patents
Information
Patent Grant
Straight through cement mixer
Patent number
8,511,887
Issue date
Aug 20, 2013
Estate of Thomas E. Allen
Thomas E. Allen
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Straight through cement mixer
Patent number
8,215,823
Issue date
Jul 10, 2012
Estate of Thomas E. Allen
Thomas E. Allen
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Straight through cement mixer
Patent number
8,192,070
Issue date
Jun 5, 2012
Estate of Thomas E. Allen
Thomas E. Allen
B28 - WORKING CEMENT, CLAY, OR STONE
Patents Applications
last 30 patents
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