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公开(公告)号：US1923190A
公开(公告)日：1933-08-22
申请号：US54990631
申请日：1931-07-10
Applicant: COUCH ROYDEN O , ESCHBACH LEO B
Inventor： COUCH ROYDEN O , ESCHBACH LEO B
IPC: B60B39/00
CPC classification number: B60B39/00
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