https://wilh-klein.de/
Wilhelm Klein Stuck-Putz-Malerei GmbH: Wilhelm Klein Stuck-Putz-Malerei GmbH
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https://search.ch/map/Basel,Wilhelm-Klein-Str.27.52@609425,269150?zoom=13
Map: Basel, Wilhelm Klein-Str. 27.52 @609425,269150 - search.ch
The interactive map of Basel, Wilhelm Klein-Str. 27.52 @609425,269150
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https://en.wikipedia.org/wiki/Johann_Wilhelm_Klein
Johann Wilhelm Klein - Wikipedia
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https://www.jewishencyclopedia.com/articles/9385-klein-wilhelm
KLEIN, WILHELM - JewishEncyclopedia.com
Complete contents the 1906 Jewish Encyclopedia.
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