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公开(公告)号:US1283296A
公开(公告)日:1918-10-29
申请号:US16571117
申请日:1917-05-01
Applicant: ROBESON PROCESS COMPANY
Inventor: PURING JOHN
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公开(公告)号:US1185605A
公开(公告)日:1916-05-30
申请号:US6657615
申请日:1915-12-13
Applicant: ROBESON PROCESS COMPANY
Inventor: PURING JOHN
CPC classification number: D06P3/32
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公开(公告)号:US1236868A
公开(公告)日:1917-08-14
申请号:US12046316
申请日:1916-09-16
Applicant: ROBESON PROCESS COMPANY
Inventor: PURING JOHN
CPC classification number: D06P1/6735 , Y10S8/917
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公开(公告)号:US1185604A
公开(公告)日:1916-05-30
申请号:US6232715
申请日:1915-11-19
Applicant: ROBESON PROCESS COMPANY
Inventor: PURING JOHN
CPC classification number: C08L95/00
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