1,2,3,4-TETRAHYDRO-5H-(1)BENZOPYRANO-(3,4-A)PYRIDINES,申请号USD3635993-传众专利搜索

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发明名称	1,2,3,4-TETRAHYDRO-5H-(1)BENZOPYRANO-(3,4-A)PYRIDINES
摘要
申请公布号	US3635993(A)	申请公布日期	1972.01.18
申请号	USD3635993	申请日期	1969.10.30
申请人	ARTHUR D. LITTLE INC.	发明人	HARRY G. PARS;FELIX E. GRANCHELLI;RAJ K. RAZDAN
分类号	C07D491/04;C07D491/052;(IPC1-7):C07D31/28	主分类号	C07D491/04
代理机构		代理人
主权项
地址

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