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Patent applications and USPTO patent grants for Chenault; David O..The latest application filed is for "system for ensuring department of transportation and local distribution company compliance in the joining of polyethylene pipes and fittings".
Patent | Date |
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System and method for ensuring the qualification of a workman to perform a task having established required standards Grant 6,953,917 - Chenault October 11, 2 | 2005-10-11 |
System for ensuring department of transportation and local distribution company compliance in the joining of polyethylene pipes and fittings App 20010050278 - Chenault, David O. | 2001-12-13 |
Method and apparatus for forming a segmented mirror parabolic solar collector trough Grant 4,253,895 - Chenault March 3, 1 | 1981-03-03 |
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