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公开(公告)号:US693011A
公开(公告)日:1902-02-11
申请号:US1901059389
申请日:1901-05-09
Applicant: HAWK FRANCIS M
Inventor: HAWK FRANCIS M
公开(公告)号:US693011A
公开(公告)日:1902-02-11
申请号:US1901059389
申请日:1901-05-09
Applicant: HAWK FRANCIS M
Inventor: HAWK FRANCIS M