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| Number | Title | Issue Date |
| 7671991 | Handheld colour measurement device A handheld color measurement device includes a housing in which an optoelectronic measurement unit is located which receives measurement light originating from a measurement object, converts it into corresponding electrical measurement signals and processes these me... | 03/02/2010 |
| 7538871 | Colour measurement device with associated measurement head A spectrophotometer for integration purposes includes a measurement head with an illumination arrangement (10) including at least one fight source (11) for the illumination of a measurement object located in a measurement plane (M) under an angle of in... | 05/26/2009 |
