FR769286A - Double tamper-proof paper manufacturing process - Google Patents

Double tamper-proof paper manufacturing process

Info

Publication number
FR769286A
FR769286A FR769286DA FR769286A FR 769286 A FR769286 A FR 769286A FR 769286D A FR769286D A FR 769286DA FR 769286 A FR769286 A FR 769286A
Authority
FR
France
Prior art keywords
manufacturing process
paper manufacturing
proof paper
double tamper
tamper
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Brot
Pellet
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
Application filed filed Critical
Application granted granted Critical
Publication of FR769286A publication Critical patent/FR769286A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
    • D21H21/46—Elements suited for chemical verification or impeding chemical tampering, e.g. by use of eradicators
FR769286D 1934-01-19 1934-01-19 Double tamper-proof paper manufacturing process Expired FR769286A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR769286T 1934-01-19

Publications (1)

Publication Number Publication Date
FR769286A true FR769286A (en) 1934-08-23

Family

ID=9184703

Family Applications (1)

Application Number Title Priority Date Filing Date
FR769286D Expired FR769286A (en) 1934-01-19 1934-01-19 Double tamper-proof paper manufacturing process

Country Status (1)

Country Link
FR (1) FR769286A (en)

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