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公开(公告)号：US2192467A
公开(公告)日：1940-03-05
申请号：US22870138
申请日：1938-09-06
Applicant: PHILLIPS PETROLEUM CO
Inventor： FREY FREDERICK E , SNOW ROBERT D , FIRST NATIONAL
IPC: C08G75/22
CPC classification number: C08G75/22
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