"We are probably nearing the limit of all we can know about astronomy."
Simon Newcomb, astronomer ; 1888
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| Number | Title | Issue Date |
| 6703010 | Spray containing amphoteric material to reduce malodors Powder compositions usable to reduce malodours, and powder formulations from which can be made aqueous spray compositions usable to reduce malodours, each comprise, as a major ingredient, amphoteric material, for example sodium bicarbonate, potassium bica... | 03/09/2004 |