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| Number | Title | Issue Date |
| 4683435 | Circuit for compensating non-linearities in electrolyte conductivity measurement system A circuit for measurement of the conductance of an electrolyte cell is disclosed which features compensation for non-linearities produced by resistance in series with the resistance of the cell and for non-linearities caused by polarization of the cell du... | 07/28/1987 |
| 4666860 | Instrument for measurement of the organic carbon content of water Apparatus and methods for measurement of total organic carbon content of water, particularly of low relative organic content, are described which feature a single sample cell for exposure of a static sample to ultraviolet radiation comprising electrodes f... | 05/19/1987 |
| 4626413 | Instrument for measurement of the organic carbon content of water Apparatus and methods for measurements of total organic carbon content of water, particularly of low relative organic content, is described which features a single sample cell for exposure of a sample to ultraviolet radiation comprising electrodes for mea... | 12/02/1986 |
