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公开(公告)号：US2421985A
公开(公告)日：1947-06-10
申请号：US52903544
申请日：1944-03-31
Applicant: MASONITE CORP
Inventor： BOEHM ROBERT M , HALL HORACE E , MACDONALD JOSEPH A
IPC: C12N1/22
CPC classification number: C12N1/22
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