Source: Graeme

First Appeared In: Yet to make an appearance

Invented by: Thomas Crapper

Owned by: The intellectual property rights to this device reside with Crapper & Flightmaster Industries.

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5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113

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