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公开(公告)号:US2890641A
公开(公告)日:1959-06-16
申请号:US46790454
申请日:1954-11-09
Applicant: FIELD JAMES H
Inventor: FIELD JAMES H
IPC: G03B9/08
CPC classification number: G03B9/08
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公开(公告)号:US1901365A
公开(公告)日:1933-03-14
申请号:US12778726
申请日:1926-08-07
Applicant: FIELD JAMES H
Inventor: FIELD JAMES H
IPC: B42F17/02
CPC classification number: B42F17/02
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公开(公告)号:US1524348A
公开(公告)日:1925-01-27
申请号:US47607321
申请日:1921-06-08
Applicant: FIELD JAMES H
Inventor: FIELD JAMES H
IPC: B42F15/00
CPC classification number: B42F15/0094
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公开(公告)号:US1992694A
公开(公告)日:1935-02-26
申请号:US68046933
申请日:1933-07-14
Applicant: FIELD JAMES H
Inventor: FIELD JAMES H
IPC: B42F17/02
CPC classification number: B42F17/02
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