Johan H. M. Deltrap

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Oostvoorne, NL

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Patents Grantslast 30 patents

Information Patent Grant
Binocular night glass
- Patent number 4,232,222
- Issue date Nov 4, 1980
- N.V. Optische Industrie "de Oude Delft"
- Johan H. M. Deltrap
- G02 - OPTICS