• Drais' "Laufmaschine", the ancestor of all bicycle". Deutsches Patent- und Markenamt. Retrieved 2021-06-26. "A Brief History of Chubb 1818–1990s". Chubb Archive...
    5 KB (520 words) - 16:57, 16 June 2024
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    2017, Phantasialand filed a trademark with the Deutsches Patent- und Markenamt (German Patent and Trade Mark Office), for the name ROOKBURGH. On March...
    21 KB (2,126 words) - 22:11, 24 November 2023
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    ISBN 978-0-7146-5249-8. "Fußball und Technik" (in German). Deutsches Patent- und Markenamt. Archived from the original on 21 June 2011. Retrieved 15 January 2008...
    64 KB (6,662 words) - 07:38, 25 June 2024
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    "Carabiner history". 3 January 2024. "The Strandkorb". Deutsches Patent- und Markenamt. Archived from the original on 27 March 2020. Retrieved 18 December 2019...
    215 KB (19,139 words) - 22:48, 21 June 2024