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公开(公告)号:US911822A
公开(公告)日:1909-02-09
申请号:US1908431916
申请日:1908-05-09
Applicant: DAVID M KNOX , KNOX WILLIAM J
Inventor: KNOX WILLIAM J
CPC classification number: D01D5/23 , Y10T428/2925 , Y10T428/2936 , Y10T428/294
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公开(公告)号:US741145A
公开(公告)日:1903-10-13
申请号:US1903165240
申请日:1903-07-13
Applicant: KNOX WILLIAM J
Inventor: KNOX WILLIAM J
CPC classification number: B61F5/14
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