Refine My Results

Creation Date 

1. Before 1999  (1)
2. 1999 To 2001  (1)
3. 2002 To 2002  (1)
4. 2003 To 2005  (3)
5. After 2005  (3)
6. More options 

Resource Type 

1. Patents  (8)
2. Books  (1)
3. More options 

Subject 

1. Chemistry  (5)
2. Metallurgy  (5)
3. Transporting  (3)
4. Performing Operations  (3)
5. Organic Chemistry  (3)
6. Their Relevant Apparatus  (3)
7. Chemical Or Physical Processes, E.G. Catalysis Or Colloidchemistry  (3)
8. Physical Or Chemical Processes Or Apparatus In General  (3)
9. Apparatus Therefor  (2)
10. Human Necessities  (2)
11. Electricity  (2)
12. Heterocyclic Compounds  (2)
13. Cracking Hydrocarbon Oils  (1)
14. Cigars  (1)
15. Casings Or Constructional Details Of Electric Apparatus  (1)
16. Acyclic Or Carbocyclic Compounds  (1)
17. Basic Electric Elements  (1)
18. Electric Techniques Not Otherwise Provided For  (1)
19. Cigarettes  (1)
20. Current Collectors  (1)
21. More options 

Databases 

1. esp@cenet  (8)
2. Open Shared Collection  (1)
3. More options