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Creation Date 

1. Before 1979  (21)
2. 1979 To 1981  (17)
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Resource Type 

1. Patents  (61)
2. Videos  (15)
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Subject 

1. Technical Subjects Covered By Former Uspc Cross-Reference Art Collections [xracs] And Digests  (61)
2. Technologies Or Applications For Mitigation Or Adaptation Againstclimate Change  (61)
3. General Tagging Of Cross-Sectional Technologies Spanning Over Several Sections Of The Ipc  (61)
4. General Tagging Of New Technological Developments  (61)
5. Lighting  (60)
6. Weapons  (60)
7. Blasting  (60)
8. Heating  (60)
9. Mechanical Engineering  (60)
10. Ventilating  (43)
11. Ranges  (43)
12. Domestic- Or Space-Heating Systems, E.G. Central Heatingsystems  (32)
13. Domestic Hot-Water Supply Systems  (32)
14. Elements Or Components Therefor  (32)
15. Manufacture Or Storage Of Ice  (18)
16. Housing  (18)
17. Liquefaction Solidification Of Gases  (18)
18. Refrigeration Or Cooling  (18)
19. Combined Heating And Refrigeration Systems  (18)
20. Heat Pump Systems  (18)
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Databases 

1. esp@cenet  (61)
2. Europeana Collections  (15)
3. EU BookShop  (5)
4. tidsskrift.dk  (3)
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