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公开(公告)号：US2478545A
公开(公告)日：1949-08-09
申请号：US62743845
申请日：1945-11-08
Applicant: HONORARY ADVISORY COUNCIL SCI
Inventor： HAROLD PEARCE
IPC: A61B3/14
CPC classification number: A61B3/14
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公开(公告)号：US2435752A
公开(公告)日：1948-02-10
申请号：US57940345
申请日：1945-02-23
Applicant: HONORARY ADVISORY COUNCIL SCI
Inventor： HAROLD PEARCE
IPC: G03B9/07
CPC classification number: G03B9/07
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公开(公告)号：US2441370A
公开(公告)日：1948-05-11
申请号：US48377143
申请日：1943-04-20
Applicant: HONORARY ADVISORY COUNCIL SCI
Inventor： HAROLD PEARCE
IPC: A61B3/14
CPC classification number: A61B3/14
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