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- Patents > 2009-09-03 > SECTION G PHYSICS
- CHECKING-DEVICES (2)
- COMPUTING; CALCULATING; COUNTING (798)
- CONTROLLING; REGULATING (63)
- EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS (70)
- HOROLOGY (4)
- INFORMATION STORAGE (85)
- INSTRUMENT DETAILS (1)
- MEASURING; TESTING (301)
- MUSICAL INSTRUMENTS; ACOUSTICS (29)
- NUCLEAR PHYSICS; NUCLEAR ENGINEERING (6)
- OPTICS (87)
- PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY (105)
- SIGNALLING (31)