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公开(公告)号:US877415A
公开(公告)日:1908-01-21
申请号:US1905261129
申请日:1905-05-19
Applicant: KANNEL REVOLVING DOOR COMPANY VAN
Inventor: ELY WALTER S
CPC classification number: E06B3/7001
公开(公告)号:US877415A
公开(公告)日:1908-01-21
申请号:US1905261129
申请日:1905-05-19
Applicant: KANNEL REVOLVING DOOR COMPANY VAN
Inventor: ELY WALTER S
CPC classification number: E06B3/7001