File:François Henri Hallopeau.jpg

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	09:43, 29 March 2012		927 × 1,194 (129 KB)	Materialscientist	{{Information \|Description ={{en\|1=François Henri Hallopeau (17 January 1842, Paris – March 1919)}} \|Source =http://ihm.nlm.nih.gov/images/B13704 \|Author =Unknown \|Date =Unknown, published before 1900 \|Permission = ...

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