Invention Grant
- Patent Title: Azophthalocyanine dyestuffs
- Patent Title (中): AZOPHTHALOCYANINE DYESTUFFS
-
Application No.: US3445449DApplication Date: 1965-07-27
-
Publication No.: US3445449APublication Date: 1969-05-20
- Inventor: MEININGER FRITZ , SPRINGER HARTMUT
- Applicant: HOECHST AG
- Assignee: Hoechst AG
- Current Assignee: Hoechst AG
- Priority: DEF0043600 1964-07-29
- Main IPC: C09B62/443
- IPC: C09B62/443 ; C09B29/38 ; C09B45/28
Information query
