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Alkyl hydroxybutyrate cleaning composition and method of cleaning air intake valve deposits Grant 10,934,508 - Hasinovic , et al. March 2, 2 | 2021-03-02 |
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Cleaning composition comprising an alkyl hydroxybutyrate and method of cleaning air intake valve deposits Grant 10,077,417 - Hasinovic , et al. September 18, 2 | 2018-09-18 |
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