FR744940A - - Google Patents
Info
- Publication number
- FR744940A FR744940A FR744940DA FR744940A FR 744940 A FR744940 A FR 744940A FR 744940D A FR744940D A FR 744940DA FR 744940 A FR744940 A FR 744940A
- Authority
- FR
- France
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
- D21C5/025—De-inking
- D21C5/027—Chemicals therefor
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Toxicology (AREA)
- Paper (AREA)
- Coloring (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US410742XA | 1931-10-24 | 1931-10-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR744940A true FR744940A (US06252093-20010626-C00008.png) | 1933-04-27 |
Family
ID=21914577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR744940D Expired FR744940A (US06252093-20010626-C00008.png) | 1931-10-24 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE615107C (US06252093-20010626-C00008.png) |
| FR (1) | FR744940A (US06252093-20010626-C00008.png) |
| GB (1) | GB410742A (US06252093-20010626-C00008.png) |
-
0
- FR FR744940D patent/FR744940A/fr not_active Expired
-
1932
- 1932-10-20 DE DEA67480D patent/DE615107C/de not_active Expired
- 1932-10-21 GB GB2949032A patent/GB410742A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE615107C (de) | 1935-06-27 |
| GB410742A (en) | 1934-05-22 |
