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- Patents > 2010-03-25 > SECTION G PHYSICS
- CHECKING-DEVICES (3)
- COMPUTING; CALCULATING; COUNTING (981)
- CONTROLLING; REGULATING (66)
- EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS (94)
- HOROLOGY (4)
- INFORMATION STORAGE (146)
- MEASURING; TESTING (274)
- MUSICAL INSTRUMENTS; ACOUSTICS (28)
- NUCLEAR PHYSICS; NUCLEAR ENGINEERING (10)
- OPTICS (123)
- PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY (111)
- SIGNALLING (54)