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1.发明授权Electrographic recording mixture containing a morpholinyl diphenyl methane and 2 triphenyl methane 失效含有二苯甲基二苯基甲烷和二苯乙烯甲烷的电子记录混合物
公开(公告)号：US3518038A
公开(公告)日：1970-06-30
申请号：US3518038D
申请日：1965-10-20
Applicant: ALLIED CHEM
Inventor： SPATZ SYDNEY M , SUGARMAN MEYER L
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