SEARCH RESULTS for assignor:"LIU, HUAWEI; HAN, ZHILEI" AND day:[2019-04-01T00:00:00Z TO 2019-04-01T23:59:59Z]

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Patent(s)

(X0) 15770858: SPEAKER HOUSING AND SPEAKER UNIT

(A1) 20180310083: SPEAKER HOUSING AND SPEAKER UNIT

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