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公开(公告)号：US2903376A
公开(公告)日：1959-09-08
申请号：US62024756
申请日：1956-11-05
Applicant: D & S PROC COMPANY INC
Inventor： DONAHUE JOHN P
IPC: D04H11/00
CPC classification number: D04H11/00 , Y10T428/23943
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