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公开(公告)号:US1030849A
公开(公告)日:1912-06-25
申请号:US1909522792
申请日:1909-10-15
Applicant: KANNEL REVOLVING DOOR COMPANY VAN
Inventor: QUAY DAVID M
CPC classification number: E05Y2900/132
公开(公告)号:US1030849A
公开(公告)日:1912-06-25
申请号:US1909522792
申请日:1909-10-15
Applicant: KANNEL REVOLVING DOOR COMPANY VAN
Inventor: QUAY DAVID M
CPC classification number: E05Y2900/132