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公开(公告)号:US1358635A
公开(公告)日:1920-11-09
申请号:US36042820
申请日:1920-02-21
Applicant: NEWTON D BAKER
Inventor: HANSON MILTON E
IPC: D21J5/00
CPC classification number: D21J5/00
公开(公告)号:US1358635A
公开(公告)日:1920-11-09
申请号:US36042820
申请日:1920-02-21
Applicant: NEWTON D BAKER
Inventor: HANSON MILTON E
IPC: D21J5/00
CPC classification number: D21J5/00