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公开(公告)号：US2610166A
公开(公告)日：1952-09-09
申请号：US21890651
申请日：1951-04-02
Applicant: SHELL DEV
Inventor： PARRY HARVEY L , WALDMAN DONALD C
IPC: C08F2/00
CPC classification number: C08F2/004
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