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US20110173935A1, Tesner, Kenneth C.; Vo, Hoang L. & Cattell, Dale, "Transmission breather assembly", issued 21 July 2011Archived 27 April 2021 at the Wayback Machine
US5129422A, Jr, Ellard D. Davison & Rabhi, Lounes, "Transmission breather control valve", issued 14 July 1992Archived 26 April 2021 at the Wayback Machine
US20110173935A1, Tesner, Kenneth C.; Vo, Hoang L. & Cattell, Dale, "Transmission breather assembly", issued 21 July 2011Archived 27 April 2021 at the Wayback Machine