ATA665778A - COUNTERFEIT-PROOF PAPER - Google Patents
COUNTERFEIT-PROOF PAPERInfo
- Publication number
- ATA665778A ATA665778A AT665778A AT665778A ATA665778A AT A665778 A ATA665778 A AT A665778A AT 665778 A AT665778 A AT 665778A AT 665778 A AT665778 A AT 665778A AT A665778 A ATA665778 A AT A665778A
- Authority
- AT
- Austria
- Prior art keywords
- counterfeit
- proof paper
- proof
- paper
- Prior art date
Links
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7731671A FR2406027A1 (en) | 1977-10-14 | 1977-10-14 | Security paper treated with a nitrophenol - showing, in a range of colours from yellow to violet, any attempt at alteration using alkaline media |
FR7823652A FR2432576A2 (en) | 1978-08-02 | 1978-08-02 | Forging-resistant paper for receipts and official documents - contg. nitrophenol deriv. reacting in basic medium (NL 18.4.79) |
Publications (2)
Publication Number | Publication Date |
---|---|
ATA665778A true ATA665778A (en) | 1982-07-15 |
AT370150B AT370150B (en) | 1983-03-10 |
Family
ID=26220269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT665778A AT370150B (en) | 1977-10-14 | 1978-09-14 | COUNTERFEIT-PROOF PAPER |
Country Status (2)
Country | Link |
---|---|
AT (1) | AT370150B (en) |
ES (1) | ES473785A1 (en) |
-
1978
- 1978-09-14 AT AT665778A patent/AT370150B/en not_active IP Right Cessation
- 1978-09-29 ES ES473785A patent/ES473785A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AT370150B (en) | 1983-03-10 |
ES473785A1 (en) | 1979-04-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EFA | Change in the company name | ||
ELJ | Ceased due to non-payment of the annual fee |