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Pat. 11477921 United States, Int. Cl.22 H05K 7/20, H02M 7/00, H05K 5/02, H05K 5/03. Power conversion system and power storage system : Appl. N 17/271105 : Filed 07.08.2019 : Pub. 18.10.2022 : / Min Xu, Tetsuji Yamashita, Toru Matsugi ; Assignee Panasonic Intellectual Property Management Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11477921/en?oq=US11477921.html (дата обращения: ДД.ММ.ГГГГ).