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+ Video-Link GB2940.
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Patente vor 1890-1900 sind in der [https://www.bl.uk/help/find-early-british-patents British Library] erhältlich.
 
Patente vor 1890-1900 sind in der [https://www.bl.uk/help/find-early-british-patents British Library] erhältlich.
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==== GB2940 vom 5. Oktober 1872 ====
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==== GB187202940 vom 5. Oktober 1872 ====
    
Referenziert in: Chubb, George Hayter: Protection from Fire and Thieves including the construction of locks, safes, strong-rooms, and fireproof buildings; burglary, and the means of preventing it; fire, its detection, prevention, and extinction; etc. also a complete list of patents for locks and safes; London, 1875.
 
Referenziert in: Chubb, George Hayter: Protection from Fire and Thieves including the construction of locks, safes, strong-rooms, and fireproof buildings; burglary, and the means of preventing it; fire, its detection, prevention, and extinction; etc. also a complete list of patents for locks and safes; London, 1875.
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Für das Protector-Eingerichte nicht relevant. Patentiert ist ein [https://www.youtube.com/watch?v=zrIT1rsyt7c fünfstiftiges Schloss].
    
==== GB190111279 vom 1. Juni 1891 ([https://depatisnet.dpma.de/DepatisNet/depatisnet?action=pdf&docid=GB000190111279A Patentschrift]) ====
 
==== GB190111279 vom 1. Juni 1891 ([https://depatisnet.dpma.de/DepatisNet/depatisnet?action=pdf&docid=GB000190111279A Patentschrift]) ====
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