FR771472A - Improvements to anti-fraud papers - Google Patents
Improvements to anti-fraud papersInfo
- Publication number
- FR771472A FR771472A FR771472DA FR771472A FR 771472 A FR771472 A FR 771472A FR 771472D A FR771472D A FR 771472DA FR 771472 A FR771472 A FR 771472A
- Authority
- FR
- France
- Prior art keywords
- fraud
- papers
- fraud papers
- 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
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24835—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including developable image or soluble portion in coating or impregnation [e.g., safety paper, etc.]
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US665528A US1998237A (en) | 1933-04-11 | 1933-04-11 | Safety paper |
Publications (1)
Publication Number | Publication Date |
---|---|
FR771472A true FR771472A (en) | 1934-10-09 |
Family
ID=24670471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR771472D Expired FR771472A (en) | 1933-04-11 | 1934-04-09 | Improvements to anti-fraud papers |
Country Status (2)
Country | Link |
---|---|
US (1) | US1998237A (en) |
FR (1) | FR771472A (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2657157A (en) * | 1950-06-02 | 1953-10-27 | American Viscose Corp | Ink transfer element |
US2920202A (en) * | 1955-04-11 | 1960-01-05 | Lof Glass Fibers Co | Identification of glass fiber mats |
BE656943A (en) * | 1960-12-27 | |||
US5344192A (en) * | 1993-04-01 | 1994-09-06 | Phillips George K | Visual validation mark for bank checks and other security documents |
US5772248A (en) * | 1995-12-07 | 1998-06-30 | Verify First Technologies, Inc. | Document with tamper and counterfeit resistant relief markings |
US5873604A (en) * | 1995-05-25 | 1999-02-23 | Verify First Technologies, Inc. | Document security system having thermo-activated pantograph and validation mark |
US5704651A (en) * | 1995-05-25 | 1998-01-06 | Verify First Technologies, Inc. | Counterfeit resistant documents and methods |
US5762378A (en) * | 1996-02-16 | 1998-06-09 | Verify First Technologies, Inc. | Tamper resistant validation marks |
-
1933
- 1933-04-11 US US665528A patent/US1998237A/en not_active Expired - Lifetime
-
1934
- 1934-04-09 FR FR771472D patent/FR771472A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1998237A (en) | 1935-04-16 |
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