Refine My Results

Creation Date 

1. Before 1960  (2,039)
2. 1960 To 1974  (4,479)
3. 1975 To 1989  (3,675)
4. 1990 To 2005  (8,983)
5. After 2005  (14,505)
6. More options 

Subject 

1. Electricity  (8,873)
2. Transporting  (8,551)
3. Performing Operations  (8,551)
4. Basic Electric Elements  (7,754)
5. Lighting  (4,273)
6. Weapons  (4,273)
7. Blasting  (4,273)
8. Heating  (4,273)
9. Mechanical Engineering  (4,273)
10. Semiconductor Devices  (4,063)
11. Electric Solid State Devices Not Otherwise Provided For  (4,063)
12. General Tagging Of Cross-Sectional Technologies Spanning Over Several Sections Of The Ipc  (3,500)
13. General Tagging Of New Technological Developments  (3,500)
14. More options 

Language 

1. German  (33,365)
2. English  (11,058)
3. French  (10,264)
4. Romanian  (53)
5. Dutch  (45)
6. Swedish  (27)
7. Russian  (10)
8. Spanish  (10)
9. Finnish  (9)
10. Portuguese  (5)
11. Danish  (4)
12. More options