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公开(公告)号:US1691994A
公开(公告)日:1928-11-20
申请号:US6971125
申请日:1925-11-17
Applicant: DU PONT
Inventor: ROSE ROBERT E
IPC: D06M13/432
CPC classification number: D06M13/432 , Y10T442/2352 , Y10T442/2762
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公开(公告)号:US1691994A
公开(公告)日:1928-11-20
申请号:US6971125
申请日:1925-11-17
Applicant: DU PONT
Inventor: ROSE ROBERT E
IPC: D06M13/432
CPC classification number: D06M13/432 , Y10T442/2352 , Y10T442/2762