Refine My Results

Creation Date 

1. Before 1984  (1,219)
2. 1984 To 1993  (1,432)
3. 1994 To 2003  (1,809)
4. 2004 To 2014  (2,621)
5. After 2014  (5,728)
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Subject 

1. Physics  (12,781)
2. Measuring  (7,381)
3. Testing  (7,381)
4. Measuring Magnetic Variables  (4,875)
5. Measuring Electric Variables  (4,875)
6. Controlling  (4,796)
7. Regulating  (4,796)
8. Systems For Controlling Or Regulating Non-Electric Variables  (3,934)
9. Electricity  (3,737)
10. Tariff Metering Apparatus  (2,086)
11. Arrangements For Measuring Two Or More Variables Not Coveredin A Single Other Subclass  (2,086)
12. Measuring Not Specially Adapted For A Specific Variable  (2,086)
13. Measuring Or Testing Not Otherwise Provided For  (2,086)
14. Transporting  (1,943)
15. Performing Operations  (1,943)
16. Cryptography  (1,554)
17. Education  (1,554)
18. Display  (1,554)
19. Advertising  (1,554)
20. Seals  (1,554)
21. More options 

Language 

1. English  (639)
2. French  (122)
3. More options