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公开(公告)号:US1713163A
公开(公告)日:1929-05-14
申请号:US37325
申请日:1925-01-03
Applicant: BASKERVILLE EDWARD A
Inventor: BASKERVILLE EDWARD A
IPC: B42D12/00
CPC classification number: B42D12/00
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公开(公告)号:US2827199A
公开(公告)日:1958-03-18
申请号:US31797352
申请日:1952-10-31
Applicant: BASKERVILLE EDWARD A
Inventor: BASKERVILLE EDWARD A
IPC: G07D11/00
CPC classification number: G07D11/0006
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公开(公告)号:US2228045A
公开(公告)日:1941-01-07
申请号:US18349538
申请日:1938-01-05
Applicant: BASKERVILLE EDWARD A
Inventor: BASKERVILLE EDWARD A
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