Karel Kolar

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Praha, CS

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Patents Grantslast 30 patents

Information Patent Grant
Universal apparatus for evaluating calendar data
- Patent number 4,285,147
- Issue date Aug 25, 1981
- Racionalizacni a experimentalni laborator
- Karel Kolar
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Universal round clock calendar
- Patent number 4,285,148
- Issue date Aug 25, 1981
- Racionalizacni a experimentalni laborator
- Karel Kolar
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS