Refine My Results

Creation Date 

1. Before 1976  (269)
2. 1976 To 1987  (4,213)
3. 1988 To 1999  (2,236)
4. 2000 To 2012  (1,708)
5. After 2012  (1,025)
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New Records 

1. New From Last Month  (7)
2. New From Last 3 Month  (103)
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Subject 

1. Physics  (9,444)
2. Measuring  (5,303)
3. Testing  (5,303)
4. Controlling  (4,357)
5. Regulating  (4,357)
6. Systems For Controlling Or Regulating Non-Electric Variables  (3,684)
7. Measuring Magnetic Variables  (3,064)
8. Measuring Electric Variables  (3,064)
9. Electricity  (2,748)
10. Transporting  (1,857)
11. Performing Operations  (1,857)
12. Tariff Metering Apparatus  (1,779)
13. Arrangements For Measuring Two Or More Variables Not Coveredin A Single Other Subclass  (1,779)
14. Measuring Not Specially Adapted For A Specific Variable  (1,779)
15. Measuring Or Testing Not Otherwise Provided For  (1,779)
16. Lighting  (1,581)
17. Weapons  (1,581)
18. Blasting  (1,581)
19. Heating  (1,581)
20. Mechanical Engineering  (1,581)
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Language 

1. Finnish  (2,676)
2. English  (831)
3. French  (30)
4. German  (4)
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