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Creation Date 

1. Before 1962  (63)
2. 1962 To 1976  (378)
3. 1977 To 1991  (3,100)
4. 1992 To 2007  (84,296)
5. After 2007  (336,415)
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New Records 

1. New From Last Month  (2,446)
2. New From Last 3 Month  (23,540)
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Resource Type 

1. Patents  (424,265)
2. Books  (1)
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Subject 

1. Calculating  (424,265)
2. Physics  (424,265)
3. Counting  (424,265)
4. Electric Communication Technique  (370,524)
5. Transmission Of Digital Information, E.G. Telegraphiccommunication  (203,549)
6. Electric Digital Data Processing  (161,945)
7. Wireless Communications Networks  (93,318)
8. Pictorial Communication, E.G. Television  (80,012)
9. Telephonic Communication  (54,489)
10. Conversion Or Distribution Of Electric Power  (45,075)
11. Generation  (45,075)
12. Circuit Arrangements Or Systems For Supplying Or Distributingelectric Power  (41,712)
13. Systems For Storing Electric Energy  (41,712)
14. Checking-Devices  (37,339)
15. Recognition Of Data  (32,850)
16. Presentation Of Data  (32,850)
17. Record Carriers  (32,850)
18. Handling Record Carriers  (32,850)
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Databases 

1. esp@cenet  (424,265)
2. Ebook Central - Academic Complete  (1)
3. Open Knowledge Repository  (1)
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Language 

1. English  (377,301)
2. Chinese  (93,140)
3. French  (68,620)
4. Korean  (49,539)
5. German  (36,435)
6. Japanese  (18,150)
7. Spanish  (3,039)
8. Portuguese  (2,097)
9. Russian  (1,143)
10. Swedish  (710)
11. Finnish  (514)
12. Danish  (376)
13. Polish  (350)
14. Norwegian  (339)
15. Turkish  (222)
16. Dutch  (180)
17. Italian  (169)
18. Czech  (142)
19. Hungarian  (111)
20. Hebrew  (95)
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