Andrea B. Tretiakoff

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Jensen Beach, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Portable print reading device for the blind
- Patent number 6,948,937
- Issue date Sep 27, 2005
- Oleg B. Tretiakoff
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Portable device for the photographing of book pages
- Patent number 6,862,074
- Issue date Mar 1, 2005
- Oleg B. Tretiakoff
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Portable device for the photographing of book pages
- Publication number 20030133085
- Publication date Jul 17, 2003
- Oleg B. Tretiakoff
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Portable print reading device for the blind
- Publication number 20030134256
- Publication date Jul 17, 2003
- Oleg B. Tretiakoff
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS