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公开(公告)号：US1868183A
公开(公告)日：1932-07-19
申请号：US39288229
申请日：1929-09-16
Applicant: CHAUNCEY A ALEXANDER , ROBERT D PEARSON
Inventor： SWEET ALVIN H
IPC: A23L19/18
CPC classification number: A23L19/19
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