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Patent applications and USPTO patent grants for Jahraus; David Wayne.The latest application filed is for "couplers for connecting a power source to a drilling string".
Patent | Date |
---|---|
Couplers For Connecting A Power Source To A Drilling String App 20210115739 - Dux; Darin Lyn ;   et al. | 2021-04-22 |
Rotary Hay Wedge For Round Balers App 20130239825 - JAHRAUS; David Wayne ;   et al. | 2013-09-19 |
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