BR7301290D0 - COLORLESS COLOR FORMERS, PROCESS FOR THEIR PREPARATION, PRESSURE-SENSITIVE COPY PAPER AND COPY SET - Google Patents
COLORLESS COLOR FORMERS, PROCESS FOR THEIR PREPARATION, PRESSURE-SENSITIVE COPY PAPER AND COPY SETInfo
- Publication number
- BR7301290D0 BR7301290D0 BR129073A BR129073A BR7301290D0 BR 7301290 D0 BR7301290 D0 BR 7301290D0 BR 129073 A BR129073 A BR 129073A BR 129073 A BR129073 A BR 129073A BR 7301290 D0 BR7301290 D0 BR 7301290D0
- Authority
- BR
- Brazil
- Prior art keywords
- preparation
- pressure
- copy
- color formers
- colorless color
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB785072A GB1420331A (en) | 1972-02-21 | 1972-02-21 | Fluoran compounds and their use in pressure-sensitive copying paper |
Publications (1)
Publication Number | Publication Date |
---|---|
BR7301290D0 true BR7301290D0 (en) | 1974-07-25 |
Family
ID=9840994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR129073A BR7301290D0 (en) | 1972-02-21 | 1973-02-21 | COLORLESS COLOR FORMERS, PROCESS FOR THEIR PREPARATION, PRESSURE-SENSITIVE COPY PAPER AND COPY SET |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS4896624A (en) |
BE (1) | BE795747A (en) |
BR (1) | BR7301290D0 (en) |
DE (1) | DE2308638A1 (en) |
ES (2) | ES411828A1 (en) |
FR (1) | FR2173103A1 (en) |
GB (1) | GB1420331A (en) |
IT (1) | IT984384B (en) |
-
0
- BE BE795747D patent/BE795747A/en unknown
-
1972
- 1972-02-21 GB GB785072A patent/GB1420331A/en not_active Expired
-
1973
- 1973-02-20 IT IT6742373A patent/IT984384B/en active
- 1973-02-20 JP JP1981573A patent/JPS4896624A/ja active Pending
- 1973-02-20 ES ES411828A patent/ES411828A1/en not_active Expired
- 1973-02-21 DE DE19732308638 patent/DE2308638A1/en active Pending
- 1973-02-21 BR BR129073A patent/BR7301290D0/en unknown
- 1973-02-21 FR FR7306078A patent/FR2173103A1/fr not_active Withdrawn
-
1975
- 1975-10-27 ES ES75442128A patent/ES442128A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE795747A (en) | 1973-08-21 |
DE2308638A1 (en) | 1973-09-06 |
FR2173103A1 (en) | 1973-10-05 |
JPS4896624A (en) | 1973-12-10 |
ES411828A1 (en) | 1976-05-16 |
GB1420331A (en) | 1976-01-07 |
ES442128A1 (en) | 1977-04-01 |
IT984384B (en) | 1974-11-20 |
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