L18C4P72, L18L4P71, L18L4P72, L18M4P72. L18S4P72, SB10K97643, SB10T83173, L18C4P71. Lenovo ThinkPad X1 Carbon 7th Gen / X1 Carbon 2019 Gen Series. Lenovo ThinkPad X1 Yoga 4th Gen / X1 Yoga 2019 Gen Series.
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