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- Patents > 2009-09-03 > SECTION G PHYSICS > EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (53)
- CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY (2)
- DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS (6)
- EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS (9)