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Dunhill: Difference between revisions
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*5861/12 was the first patent registered. However, there are other patents for these same tubes, with records in different countries. Examples: 1130806/15-158709/14-116989/17-1343253/20-197365/20-491232/19. | *5861/12 was the first patent registered. However, there are other patents for these same tubes, with records in different countries. Examples: 1130806/15-158709/14-116989/17-1343253/20-197365/20-491232/19. | ||
<blockquote><q>Aluminium inner tubes for the Dunhill pipes were patented in March 1912, but they were being fitted about eighteen months earlier. They sold at one shilling for a packet of six.</q> Balfour, Michael, Alfred Dunhill, One Hundred Years and More (Weidenfield and Nicolson, London, 1992).</blockquote> | |||
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File:Innertube.jpg|© | File:Innertube.jpg|© | ||