Abraham Groeneweg

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Maassluis, NL

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Patents Grantslast 30 patents

Information Patent Grant
Multi-image camera
- Patent number 4,505,561
- Issue date Mar 19, 1985
- Leo H. Beckman
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Device for viewing residual light in the visible and the near infra...
- Patent number 4,266,129
- Issue date May 5, 1981
- N.V. Optische Industrie "de Oude Delft"
- Frits J. Versteeg
- G02 - OPTICS
Information Patent Grant
Device for positioning X-ray films and intensifying screens
- Patent number 4,253,028
- Issue date Feb 24, 1981
- N.V. Optische Industrie "de Oude Delft"
- Frank DeBruin
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Monocular night glass with pivotable power unit
- Patent number 4,132,889
- Issue date Jan 2, 1979
- N. V. Optische Industrie "De Oude Delft"
- Abraham Groeneweg
- G02 - OPTICS
Information Patent Grant
Film transport
- Patent number 4,047,209
- Issue date Sep 6, 1977
- N.V. Optische Industrie "De Oude Delft"
- Abraham Groeneweg
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Optical apparatus for reproducing a pair of data images on a common...
- Patent number 4,040,723
- Issue date Aug 9, 1977
- N. V. Optische Industrie "De Oude Delft"Delft
- Abraham Groeneweg
- G02 - OPTICS