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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. | ||
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File:Innertube.jpg|© | |||
File:Innertube2.jpg|© | |||
File:Innertube3.jpg|© | |||
</gallery> | |||
== Finishes == <!--T:47--> | == Finishes == <!--T:47--> |