Refine My Results

Creation Date 

1. Before 1960  (97)
2. 1960 To 1974  (105)
3. 1975 To 1988  (1,200)
4. 1989 To 2003  (3,273)
5. After 2003  (12,686)
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Subject 

1. Lighting  (9,494)
2. Weapons  (9,494)
3. Blasting  (9,494)
4. Heating  (9,494)
5. Mechanical Engineering  (9,494)
6. Electricity  (8,360)
7. Ventilating  (5,621)
8. Ranges  (5,621)
9. Conversion Or Distribution Of Electric Power  (3,638)
10. Generation  (3,638)
11. Basic Electric Elements  (3,427)
12. Electric Techniques Not Otherwise Provided For  (3,212)
13. Electric Heating  (3,091)
14. Electric Lighting Not Otherwise Provided For  (3,091)
15. Combined Heating And Refrigeration Systems  (2,842)
16. Heat Pump Systems  (2,842)
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Language 

1. English  (16,216)
2. German  (6,770)
3. Japanese  (1,335)
4. Chinese  (713)
5. Korean  (309)
6. Spanish  (116)
7. Russian  (62)
8. Portuguese  (18)
9. Swedish  (11)
10. Romanian  (8)
11. Finnish  (5)
12. Arabic  (4)
13. Dutch  (3)
14. Danish  (2)
15. Norwegian  (2)
16. More options