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公开(公告)号：US2254785A
公开(公告)日：1941-09-02
申请号：US35324440
申请日：1940-08-19
Applicant: HENRY A WALLACE
Inventor： SMITH WILEY C , REED JESSE O , VEITCH FLETCHER P , SHINGLER GEORGE P
IPC: C09F1/00
CPC classification number: C09F1/00
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