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公开(公告)号:US1549797A
公开(公告)日:1925-08-18
申请号:US44158521
申请日:1921-02-01
Applicant: AMERICAN OPTICAL CORP
Inventor: PARSONS HAROLD K
IPC: G02C7/06
CPC classification number: G02C7/06
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公开(公告)号:US1474788A
公开(公告)日:1923-11-20
申请号:US31405419
申请日:1919-07-29
Applicant: AMERICAN OPTICAL CORP
Inventor: PARSONS HAROLD K
IPC: G02C13/00
CPC classification number: A61B3/04 , G02C13/003
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公开(公告)号:US1545847A
公开(公告)日:1925-07-14
申请号:US31405319
申请日:1919-07-29
Applicant: AMERICAN OPTICAL CORP
Inventor: PARSONS HAROLD K
IPC: G02C13/00
CPC classification number: A61B3/04 , G02C13/003
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公开(公告)号:US1471368A
公开(公告)日:1923-10-23
申请号:US46354221
申请日:1921-04-22
Applicant: AMERICAN OPTICAL CORP
Inventor: TILLYER EDGAR D , PARSONS HAROLD K
IPC: G02C7/06
CPC classification number: G02C7/06
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公开(公告)号:US1563918A
公开(公告)日:1925-12-01
申请号:US57918822
申请日:1922-08-02
Applicant: AMERICAN OPTICAL CORP
Inventor: PARSONS HAROLD K
IPC: B24B13/00
CPC classification number: B24B13/0012
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公开(公告)号:US1561107A
公开(公告)日:1925-11-10
申请号:US48181221
申请日:1921-07-01
Applicant: AMERICAN OPTICAL CORP
Inventor: PARSONS HAROLD K
IPC: B24B13/00
CPC classification number: B24B13/0012
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公开(公告)号:US1170197A
公开(公告)日:1916-02-01
申请号:US1739715
申请日:1915-03-27
Applicant: AMERICAN OPTICAL CORP
Inventor: STYLE HARRY H , PARSONS HAROLD K
IPC: G02C1/02
CPC classification number: G02C1/02
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