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公开(公告)号：US2400047A
公开(公告)日：1946-05-07
申请号：US51027143
申请日：1943-11-15
Applicant: ITSCOVICH MAXWELL M
Inventor： ITSCOVICH MAXWELL M
IPC: B60C7/02
CPC classification number: B60C7/02 , Y10T152/10387
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