Refine My Results

Creation Date 

1. Before 1960  (11,376)
2. 1960 To 1975  (31,784)
3. 1976 To 1991  (111,478)
4. 1992 To 2008  (187,187)
5. After 2008  (460,107)
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New Records 

1. New From Last Month  (34,502)
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Subject 

1. Chemistry  (524,809)
2. Metallurgy  (524,809)
3. Treatment Of Water, Waste Water, Sewage, Or Sludge  (492,574)
4. Physical Or Chemical Processes Or Apparatus In General  (489,653)
5. Separation  (331,058)
6. Fixed Constructions  (186,791)
7. Their Relevant Apparatus  (138,364)
8. Chemical Or Physical Processes, E.G. Catalysis Or Colloidchemistry  (138,364)
9. Ships Or Other Waterborne Vessels  (122,428)
10. Related Equipment  (122,428)
11. Lighting  (103,711)
12. Weapons  (103,711)
13. Blasting  (103,711)
14. Heating  (103,711)
15. Mechanical Engineering  (103,711)
16. Launching, Hauling-Out, Or Dry-Docking Of Vessels  (102,078)
17. Life-Saving In Water  (102,078)
18. Equipment For Dwelling Or Working Under Water  (102,078)
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Language 

1. English  (648,141)
2. Chinese  (244,107)
3. French  (104,756)
4. German  (76,696)
5. Korean  (41,065)
6. Japanese  (24,202)
7. Spanish  (13,419)
8. Russian  (10,055)
9. Portuguese  (7,428)
10. Norwegian  (6,083)
11. Swedish  (5,429)
12. Italian  (4,988)
13. Danish  (3,782)
14. Finnish  (3,749)
15. Dutch  (2,902)
16. Polish  (2,438)
17. Czech  (779)
18. Ukrainian  (768)
19. Romanian  (610)
20. Hungarian  (458)
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