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Transportable Luft- und Brücken-Leiter, System Porta (1874) | Portable Step and Bridge Ladder, System Porta (1874)

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Author Porta, Paul
Published  Mailand, 1874
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1500-1899
Selected historical patents of the Geheimes Staatsarchiv Preußischer Kulturbesitz, Berlin
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Mechanisms: Portable Step and Bridge Ladder, System Porta (1874)
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DMG-Lib FaviconDMG-Lib https://www.dmg-lib.org/dmglib/handler?docum=43007009
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ITUIlmenau TU  http://www.tu-ilmenau.de
GSAkqx.cls.enum32semantics.DATA_PROVIDER_INFO.INST_DE_GEHEIMES_STAATSARCHIV_BERLIN.s  http://www.gsta.spk-berlin.de
Administrative information
Time of publication 1874

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