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Creation Date 

1. Before 1959  (13,993)
2. 1959 To 1973  (25,706)
3. 1974 To 1988  (82,546)
4. 1989 To 2004  (129,543)
5. After 2004  (356,587)
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Subject 

1. Climate Change Mitigation Technologies In The Production Orprocessing Of Goods  (331,904)
2. Climate Change Mitigation Technologies Related To Wastewatertreatment Or Waste Management  (181,523)
3. Transporting  (173,334)
4. Performing Operations  (173,334)
5. Treatment Of Water, Waste Water, Sewage, Or Sludge  (116,017)
6. Physical Or Chemical Processes Or Apparatus In General  (113,020)
7. Organic Chemistry  (101,122)
8. Ferrous Or Non-Ferrous Alloys  (75,606)
9. Treatment Of Alloys Or Non-Ferrous Metals  (75,606)
10. Inorganic Chemistry  (73,310)
11. Compositions Thereof, E.G. Mortars, Concrete Or Like Buildingmaterials  (68,663)
12. Artificial Stone  (68,663)
13. Cements  (68,663)
14. Ceramics  (68,663)
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Language 

1. English  (527,499)
2. Chinese  (141,991)
3. French  (83,782)
4. German  (58,276)
5. Korean  (22,750)
6. Russian  (15,490)
7. Japanese  (15,352)
8. Spanish  (7,248)
9. Portuguese  (5,462)
10. Swedish  (2,827)
11. Dutch  (2,165)
12. Finnish  (1,804)
13. Polish  (1,689)
14. Italian  (1,510)
15. Danish  (1,353)
16. Norwegian  (983)
17. Czech  (974)
18. Romanian  (834)
19. Ukrainian  (802)
20. Turkish  (154)
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