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For the Inventor, By the Inventor

Praha, Czechoslovakia

Racionalizacni a Experimentalni Laborator


USPTO Granted Patents = 2

Forward Citations = 23

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1 inventor (with patents filed for the assignee):

goldMedal Karel Kolar (2 out of 4 patents)


2 patents:

1. 4285148 - Universal round clock calendar (1981-08-25),
2. 4285147 - Universal apparatus for evaluating calendar data (1981-08-25),
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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#3 in Praha

#162 in Czechoslovakia

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Praha, Czechoslovakia

Racionalizacni a Experimentalni Laborator

Forward Citations = 23

1 inventor:

goldMedal Karel Kolar (2 out of 4 patents)

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