DISRAELI DOCUMENTS

French Patent # 2,609,516

French Patent 2,609,516 - Campagnolo main image

The variable-slant-parallelogram of the 1987 Campagnolo Chorus is described in loving detail in this patent. Unsurprisingly, no mention is made of Boris Rostislavovich Mikhailov's curiously similar Soviet patent dating from 1979.


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Campagnolo Chorus derailleur (C010-LG) thumbnail
Campagnolo Chorus derailleur (C010-SM) thumbnail


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