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Creation Date 

1. Before 1961  (78)
2. 1961 To 1974  (1,301)
3. 1975 To 1988  (2,046)
4. 1989 To 2003  (1,503)
5. After 2003  (1,858)
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Subject 

1. Technical Subjects Covered By Former Uspc  (4,616)
2. Technical Subjects Covered By Former Us Classification  (2,956)
3. Transporting  (2,486)
4. Performing Operations  (2,486)
5. Technologies Or Applications For Mitigation Or Adaptation Againstclimate Change  (2,362)
6. Chemistry  (2,211)
7. Metallurgy  (2,211)
8. Technical Subjects Covered By Former Uspc Cross-Reference Artcollections [xracs] And Digests  (2,000)
9. Lighting  (1,893)
10. Weapons  (1,893)
11. Blasting  (1,893)
12. Heating  (1,893)
13. Mechanical Engineering  (1,893)
14. Human Necessities  (1,095)
15. Climate Change Mitigation Technologies In The Production Orprocessing Of Goods  (843)
16. Physics  (803)
17. Engineering Elements And Units  (658)
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Language 

1. Danish  (6,452)
2. German  (290)
3. English  (237)
4. French  (196)
5. Norwegian  (7)
6. Icelandic  (2)
7. Russian  (1)
8. Swedish  (1)
9. Czech  (1)
10. Portuguese  (1)
11. Estonian  (1)
12. Dutch  (1)
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