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公开(公告)号：US1876363A
公开(公告)日：1932-09-06
申请号：US45585130
申请日：1930-05-26
Applicant: ROBERT MITCHELL COMPANY LTD
Inventor： TAYLOR HAROLD V
IPC: E06B3/50
CPC classification number: E06B3/5063 , E06B3/50
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公开(公告)号：US1876365A
公开(公告)日：1932-09-06
申请号：US50763531
申请日：1931-01-09
Applicant: ROBERT MITCHELL COMPANY LTD
Inventor： TAYLOR HAROLD V
IPC: E06B3/50
CPC classification number: E06B3/5063 , E06B3/50
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