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2.
公开(公告)号:US3145458A
公开(公告)日:1964-08-25
申请号:US25708663
申请日:1963-02-08
Applicant: DEGUSSA
Inventor: HARRY KLOEPFER , JOHANNES MULLER , FRITZ SPERR
IPC: B22F1/00 , C01B21/06 , C01B21/082 , C04B35/58 , C22C29/04
CPC classification number: C04B35/65 , B22F1/00 , B22F1/0003 , B22F1/0088 , C01B21/0622 , C01B21/0828 , C04B35/58042 , C22C29/04
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3.
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