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公开(公告)号：US1953636A
公开(公告)日：1934-04-03
申请号：US56874831
申请日：1931-10-14
Applicant: FREDERICK K KILIAN
Inventor： SKELTON CHARLES E
IPC: B60B33/00
CPC classification number: B60B33/0002 , Y10T16/191 , Y10T16/201
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