FR559660A - Security paper and process for making it - Google Patents

Security paper and process for making it

Info

Publication number
FR559660A
FR559660A FR559660DA FR559660A FR 559660 A FR559660 A FR 559660A FR 559660D A FR559660D A FR 559660DA FR 559660 A FR559660 A FR 559660A
Authority
FR
France
Prior art keywords
making
security paper
security
paper
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)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Crane Co
Crane and Co Inc
Original Assignee
Crane Co
Crane and Co Inc
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 by Crane Co, Crane and Co Inc filed Critical Crane Co
Application granted granted Critical
Publication of FR559660A publication Critical patent/FR559660A/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
FR559660D 1921-10-31 1922-12-11 Security paper and process for making it Expired FR559660A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US511808A US1535861A (en) 1921-10-31 1921-10-31 Safety paper and process of making the same

Publications (1)

Publication Number Publication Date
FR559660A true FR559660A (en) 1923-09-19

Family

ID=10357968

Family Applications (1)

Application Number Title Priority Date Filing Date
FR559660D Expired FR559660A (en) 1921-10-31 1922-12-11 Security paper and process for making it

Country Status (3)

Country Link
US (1) US1535861A (en)
FR (1) FR559660A (en)
GB (1) GB209919A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2496127A (en) 2011-10-31 2013-05-08 Aidc Global Ltd A randomly generated identification mark

Also Published As

Publication number Publication date
US1535861A (en) 1925-04-28
GB209919A (en) 1924-01-24

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