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Creation Date 

1. Before 1960  (225)
2. 1960 To 1975  (1,426)
3. 1976 To 1991  (6,614)
4. 1992 To 2008  (12,325)
5. After 2008  (19,097)
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New Records 

1. New From Last Month  (88)
2. New From Last 3 Month  (809)
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Subject 

1. Sinks  (20,783)
2. Domestic Plumbing Installations For Fresh Water Or Waste Water  (20,783)
3. Flushing Valves Therefor  (19,384)
4. Water-Closets Or Urinals With Flushing Devices  (19,384)
5. Transporting  (4,388)
6. Performing Operations  (4,388)
7. Lighting  (3,484)
8. Blasting  (3,484)
9. Heating  (3,484)
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Language 

1. English  (33,668)
2. Chinese  (6,568)
3. French  (4,165)
4. German  (3,490)
5. Japanese  (2,946)
6. Korean  (2,243)
7. Spanish  (700)
8. Portuguese  (311)
9. Italian  (235)
10. Danish  (159)
11. Swedish  (154)
12. Russian  (146)
13. Finnish  (124)
14. Polish  (114)
15. Norwegian  (104)
16. Dutch  (69)
17. Turkish  (61)
18. Czech  (40)
19. Hungarian  (16)
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