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Henricus Mathias Marie Kessels

Philips

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Featured researches published by Henricus Mathias Marie Kessels.

Archive | 1988

Optical scanning apparatus which detects scanning spot focus error

Christiaan H. F. Velzel; Henricus Mathias Marie Kessels

Archive | 1981

Optical system which provides a collimated light beam

Johan Christiaan Jacobus Finck; Henricus Mathias Marie Kessels

Archive | 1986

Optical record carrier scanning apparatus with scanning beam focus error detection

Henricus Mathias Marie Kessels; Christiaan H. F. Velzel

Archive | 1987

Apparatus for scanning an optical record carrier

Henricus Mathias Marie Kessels; Christiaan Hendrik Frans Velzel

Archive | 1991

Device for optically scanning an information plane detecting border portions of light beam

Willem Gerard Opheij; Henricus Mathias Marie Kessels; Christiaan H. F. Velzel

Archive | 1989

Arrangement for optically measuring the profile of a radiation reflecting surface

Henricus Mathias Marie Kessels

Archive | 1976

Specimen holder for an X-ray diffraction apparatus

Henricus Mathias Marie Kessels

Archive | 1986

Arrangement for optically measuring a surface profile

Henricus Mathias Marie Kessels

Archive | 2017

Improved eye surface topographer

Henricus Mathias Marie Kessels; Jan G. M. Brassé; Christiaan H. F. Velzel

Archive | 1991

Vorrichtung zum Abtasten einer Informationsfläche mit optischer Strahlung An apparatus for scanning an information surface with optical radiation

Willem Gerard Opheij; Henricus Mathias Marie Kessels; Christiaan Hendrik Fran Velzel

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Christiaan H. F. Velzel

Philips

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Christiaan Hendrik Frans Velzel

Philips

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Johan Christiaan Jacobus Finck

Philips

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Willem Gerard Opheij

Philips

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