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公开(公告)号:US2503136A
公开(公告)日:1950-04-04
申请号:US1311148
申请日:1948-03-05
Applicant: SIMPSON DOYLE H
Inventor: SIMPSON DOYLE H
IPC: E04F10/08
CPC classification number: E04F10/08
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公开(公告)号:US2485118A
公开(公告)日:1949-10-18
申请号:US1772548
申请日:1948-03-29
Applicant: SIMPSON DOYLE H
Inventor: SIMPSON DOYLE H
CPC classification number: A45B23/00 , A45B25/14 , A45B25/18 , A45B2023/0012 , A45B2025/146 , A45B2200/1036
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