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公开(公告)号：US1630535A
公开(公告)日：1927-05-31
申请号：US15211726
申请日：1926-12-02
Applicant: HANS MAUL
Inventor： HANS MAUL
IPC: B60C3/00
CPC classification number: B60C3/00 , Y10T152/10126
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