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公开(公告)号:US2398288A
公开(公告)日:1946-04-09
申请号:US43300942
申请日:1942-03-02
Applicant: DITTO INC
Inventor: COLLINS HOWARD E
IPC: B41L11/00
CPC classification number: B41L11/00
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公开(公告)号:US2163934A
公开(公告)日:1939-06-27
申请号:US19411238
申请日:1938-03-05
Applicant: DITTO INC
Inventor: COLLINS HOWARD E
IPC: B41M5/08
CPC classification number: B41M5/08
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