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公开(公告)号：US1617384A
公开(公告)日：1927-02-15
申请号：US73504424
申请日：1924-08-29
Applicant: THOMAS FISK ERNEST
Inventor： THOMAS FISK ERNEST
IPC: E06B7/26
CPC classification number: E06B7/26 , Y10S454/906
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