ATA665778A - COUNTERFEIT-PROOF PAPER - Google Patents

COUNTERFEIT-PROOF PAPER

Info

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
Application number
AT665778A
Other languages
German (de)
Other versions
AT370150B (en
Original Assignee
Voiron Papeteries
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR7731671A external-priority patent/FR2406027A1/en
Priority claimed from FR7823652A external-priority patent/FR2432576A2/en
Application filed by Voiron Papeteries filed Critical Voiron Papeteries
Publication of ATA665778A publication Critical patent/ATA665778A/en
Application granted granted Critical
Publication of AT370150B publication Critical patent/AT370150B/en

Links

AT665778A 1977-10-14 1978-09-14 COUNTERFEIT-PROOF PAPER AT370150B (en)

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)

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