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Creation Date 

1. Before 2005  (2)
2. 2005 To 2008  (3)
3. 2009 To 2010  (4)
4. 2011 To 2013  (6)
5. After 2013  (2)
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Subject 

1. Electricity  (8)
2. Electric Communication Technique  (8)
3. Calculating  (7)
4. Electric Digital Data Processing  (7)
5. Computing  (7)
6. Physics  (7)
7. Counting  (7)
8. Pictorial Communication, E.G. Television  (4)
9. Transmission Of Digital Information, E.G. Telegraphiccommunication  (4)
10. Lighting  (2)
11. Weapons  (2)
12. Harpoon Guns  (2)
13. Blasting  (2)
14. Heating  (2)
15. Apparatus For Launching Projectiles Or Missiles From Barrels,e.G. Cannons  (2)
16. Mechanical Engineering  (2)
17. Launchers For Rockets Or Torpedoes  (2)
18. Mountings For Smallarms Or Ordnance  (1)
19. Information Storage  (1)
20. Functional Features Or Details Common To Both Smallarms Andordnance, E.G. Cannons  (1)
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Language 

1. English  (14)
2. Spanish  (2)
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