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公开(公告)号:US693022A
公开(公告)日:1902-02-11
申请号:US1901043803
申请日:1901-01-18
Applicant: EMMA HORSFIELD E
Inventor: HORSFIELD JOHN
CPC classification number: E06B7/10
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公开(公告)号:US693021A
公开(公告)日:1902-02-11
申请号:US1901055131
申请日:1901-04-10
Applicant: EMMA HORSFIELD E
Inventor: HORSFIELD JOHN
CPC classification number: E05Y2201/264
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