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公开(公告)号：US2431353A
公开(公告)日：1947-11-25
申请号：US54721244
申请日：1944-07-29
Applicant: MASONITE CORP
Inventor： EVANS VARNER ALVIE , MERRITT PETTINGILL FRED
CPC classification number: B31F1/0012 , B31F1/0009 , B31F1/08
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