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Creation Date 

1. Before 1975  (30)
2. 1975 To 1986  (91)
3. 1987 To 1998  (326)
4. 1999 To 2011  (4,595)
5. After 2011  (9,845)
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New Records 

1. New From Last Month  (38)
2. New From Last 3 Month  (505)
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Subject 

1. Semiconductor Devices  (8,715)
2. Electric Solid State Devices Not Otherwise Provided For  (8,715)
3. Physics  (1,757)
4. Processes Or Means, E.G. Batteries, For The Direct Conversionof Chemical Into Electrical Energy  (1,662)
5. Line Connectors  (1,346)
6. Current Collectors  (1,346)
7. Chemistry  (1,264)
8. Metallurgy  (1,264)
9. Transporting  (930)
10. Performing Operations  (930)
11. Antennas, I.E. Radio Aerials  (797)
12. Electric Techniques Not Otherwise Provided For  (722)
13. Technical Subjects Covered By Former Uspc Cross-Reference Art Collections [xracs] And Digests  (599)
14. General Tagging Of Cross-Sectional Technologies Spanning Over Several Sections Of The Ipc  (599)
15. General Tagging Of New Technological Developments  (599)
16. Cables  (570)
17. Conductors  (570)
18. Insulators  (570)
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Language 

1. English  (14,360)
2. French  (1,693)
3. German  (1,422)
4. Chinese  (189)
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7. Portuguese  (31)
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