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公开(公告)号:CA176875A
公开(公告)日:1917-05-08
申请号:CA176875D
申请日:1917-01-08
Applicant: STEWART WILLIAM MCKENZIE
Inventor: STEWART WILLIAM MCKENZIE
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公开(公告)号:US1261176A
公开(公告)日:1918-04-02
申请号:US13983016
申请日:1916-12-30
Applicant: STEWART WILLIAM MCKENZIE
Inventor: STEWART WILLIAM MCKENZIE
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