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公开(公告)号：US632774A
公开(公告)日：1899-09-12
申请号：US1899712688
申请日：1899-04-12
Applicant: BATEMAN JOHN W
Inventor： BATEMAN JOHN W
CPC classification number: B60B33/0002 , Y10T16/1867 , Y10T16/201
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