BE413042A - - Google Patents
Info
- Publication number
- BE413042A BE413042A BE413042DA BE413042A BE 413042 A BE413042 A BE 413042A BE 413042D A BE413042D A BE 413042DA BE 413042 A BE413042 A BE 413042A
- Authority
- BE
- Belgium
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
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/916—Fraud or tamper detecting
-
- 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 |
|---|---|---|---|
| US680451A US2032816A (en) | 1932-08-25 | 1932-08-25 | Method of making safety paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE413042A true BE413042A (fr) | 1936-01-31 |
Family
ID=10377875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE413042D BE413042A (fr) | 1932-08-25 | 1935-12-30 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2032816A (fr) |
| BE (1) | BE413042A (fr) |
| FR (1) | FR800711A (fr) |
| GB (1) | GB457081A (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4846502A (en) * | 1986-06-24 | 1989-07-11 | Wallace Computer Services, Inc. | Tamper evident document and use thereof |
-
1932
- 1932-08-25 US US680451A patent/US2032816A/en not_active Expired - Lifetime
-
1935
- 1935-12-21 GB GB35450/35A patent/GB457081A/en not_active Expired
- 1935-12-28 FR FR800711D patent/FR800711A/fr not_active Expired
- 1935-12-30 BE BE413042D patent/BE413042A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB457081A (en) | 1936-11-20 |
| US2032816A (en) | 1936-03-03 |
| FR800711A (fr) | 1936-07-17 |