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公开(公告)号：US2222142A
公开(公告)日：1940-11-19
申请号：US33761140
申请日：1940-05-28
Applicant: STANDARD OIL CO CALIFORNIA
Inventor： DOTY IRA G
IPC: B62B1/26
CPC classification number: B62B1/264 , B62B2202/02 , B62B2203/44
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