Category:Henryk Grach Piotr Niewęgłowski

**Henryk Grach Piotr Niewęgłowski**
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Date of birth	18 January 1807; Międzyrzec Podlaski
Date of death	20 March 1881; Paris
Occupation	mathematician; Q114009160;
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	Q97670648; ISNI: 0000000072326449; VIAF ID: 102059232; NUKAT ID: n2002034300; PLWABN ID: 9810598428305606
	Reasonator; Scholia; Wikidocumentaries; PetScan; statistics; WikiMap; Locator tool; KML file; Search depicted;

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