Jean-Paul Boly

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Zoeterwoude, NL

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Patents Grantslast 30 patents

Information Patent Grant
Electronic payment method and system having several calculation uni...
- Patent number 6,016,955
- Issue date Jan 25, 2000
- Koninklijke KPN N.V.
- Peter Jacobus Nicolaas De Rooij
- G06 - COMPUTING CALCULATING COUNTING