Refine My Results

Creation Date 

1. Before 1960  (5,473)
2. 1960 To 1975  (23,456)
3. 1976 To 1991  (97,300)
4. 1992 To 2008  (112,119)
5. After 2008  (282,889)
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New Records 

1. New From Last Month  (20,786)
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Subject 

1. Electricity  (96,440)
2. Transporting  (75,710)
3. Performing Operations  (75,710)
4. Measuring Areas  (70,629)
5. Measuring Length, Thickness Or Similar Lineardimensions  (70,629)
6. Measuring Angles  (70,629)
7. Measuring Irregularities Of Surfaces Or Contours  (70,629)
8. Calculating  (41,335)
9. Computing  (41,335)
10. Counting  (41,335)
11. Measuring Magnetic Variables  (39,926)
12. Measuring Electric Variables  (39,926)
13. Signalling  (38,423)
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Language 

1. English  (425,066)
2. Chinese  (157,739)
3. German  (73,027)
4. French  (64,788)
5. Japanese  (15,404)
6. Korean  (14,073)
7. Spanish  (4,101)
8. Russian  (3,329)
9. Italian  (2,662)
10. Portuguese  (2,130)
11. Swedish  (1,779)
12. Danish  (870)
13. Dutch  (779)
14. Polish  (768)
15. Finnish  (761)
16. Norwegian  (669)
17. Czech  (236)
18. Ukrainian  (184)
19. Romanian  (180)
20. Turkish  (134)
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