Matches in DBpedia 2014 for { ?s ?p Julius Hermann Kröhl (in English his name is written Kroehl) was a German American inventor and engineer. He invented and built the first submarine able to dive and resurface on its own, the Sub Marine Explorer, technically advanced for its era. His achievements in architecture, civil and mechanical engineering were also significant.. }
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- Julius_H._Kroehl abstract "Julius Hermann Kröhl (in English his name is written Kroehl) was a German American inventor and engineer. He invented and built the first submarine able to dive and resurface on its own, the Sub Marine Explorer, technically advanced for its era. His achievements in architecture, civil and mechanical engineering were also significant.".
- Julius_H._Kroehl comment "Julius Hermann Kröhl (in English his name is written Kroehl) was a German American inventor and engineer. He invented and built the first submarine able to dive and resurface on its own, the Sub Marine Explorer, technically advanced for its era. His achievements in architecture, civil and mechanical engineering were also significant.".