NL39477C - - Google Patents
Info
- Publication number
- NL39477C NL39477C NL39477DA NL39477C NL 39477 C NL39477 C NL 39477C NL 39477D A NL39477D A NL 39477DA NL 39477 C NL39477 C NL 39477C
- Authority
- NL
- Netherlands
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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53552—Valve applying or removing
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE434867X | 1934-02-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL39477C true NL39477C (ro) |
Family
ID=6506689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL39477D NL39477C (ro) | 1934-02-08 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2083206A (ro) |
| BE (1) | BE407722A (ro) |
| FR (1) | FR786352A (ro) |
| GB (1) | GB434867A (ro) |
| NL (1) | NL39477C (ro) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE480326A (ro) * | 1944-01-31 | |||
| US2505470A (en) * | 1944-01-31 | 1950-04-25 | Ncr Co | Pressure sensitive record material |
| US2653110A (en) * | 1948-03-17 | 1953-09-22 | Standard Register Co | Manifolding transfer and method of making |
| US2663579A (en) * | 1948-03-17 | 1953-12-22 | Standard Register Co | Manifolding transfer and method of making |
| US2663653A (en) * | 1948-03-17 | 1953-12-22 | Standard Register Co | Manifold sheet and process of making same |
| US2826511A (en) * | 1954-08-10 | 1958-03-11 | Messinger Emanuel | Method and product of water writing and marking |
| US2874977A (en) * | 1957-02-14 | 1959-02-24 | Zenith Radio Corp | Code card device |
| US3511608A (en) * | 1967-12-14 | 1970-05-12 | Harold P Anderson | Multiple layer paper test strip |
| US3707300A (en) * | 1971-09-01 | 1972-12-26 | Robert J Tamburro | Tamperproof serial number |
| US4231593A (en) * | 1978-02-21 | 1980-11-04 | Centurion Data Corporation | Check with electrically conductive layer |
| US4437935A (en) * | 1981-06-03 | 1984-03-20 | Crane And Company | Method and apparatus for providing security features in paper |
| US5234732A (en) * | 1991-03-18 | 1993-08-10 | Philip Morris Inc. | Tamper-indicating wrappers |
-
0
- BE BE407722D patent/BE407722A/xx unknown
- NL NL39477D patent/NL39477C/xx active
-
1935
- 1935-02-01 GB GB3303/35A patent/GB434867A/en not_active Expired
- 1935-02-06 FR FR786352D patent/FR786352A/fr not_active Expired
- 1935-02-08 US US5560A patent/US2083206A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2083206A (en) | 1937-06-08 |
| FR786352A (fr) | 1935-09-02 |
| BE407722A (ro) | |
| GB434867A (en) | 1935-09-10 |