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公开(公告)号：US2650193A
公开(公告)日：1953-08-25
申请号：US77574647
申请日：1947-09-23
Applicant: INFILCO INC
Inventor： KALINSKE ANTON A , HENRY SCOTT LE ROY
IPC: C02F1/52
CPC classification number: C02F1/5209
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