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公开(公告)号：US2344024A
公开(公告)日：1944-03-14
申请号：US45973642
申请日：1942-09-25
Applicant: PFANSTIEHL CHEMICAL COMPANY
Inventor： BRUCE CHANDLER , YUEN HENRY B
IPC: B23P15/42
CPC classification number: B23P15/42
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