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公开(公告)号：US843251A
公开(公告)日：1907-02-05
申请号：US1906298733
申请日：1906-01-31
Applicant: ALBRECHT LEWIS
Inventor： ALBRECHT LEWIS
CPC classification number: C10B39/04
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公开(公告)号：US1189223A
公开(公告)日：1916-07-04
申请号：US1911616762
申请日：1911-03-24
Applicant: ALBRECHT LEWIS
Inventor： ALBRECHT LEWIS
CPC classification number: B60C23/18 , B60C2011/013 , Y10T152/10126 , Y10T152/10639
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