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公开(公告)号：US1891124A
公开(公告)日：1932-12-13
申请号：US35916429
申请日：1929-04-29
Applicant: PHILIPS NV
Inventor： ARKEL ANTON EDUARD VAN , DE BOER JAN HENDRIK , WILHELMUS KOOPMAN
IPC: C23C16/14
CPC classification number: C23C16/14 , Y10S428/936 , Y10S428/938
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