DISRAELI DOCUMENTS

French Patent # 992,829 - Simplex

French Patent 992,829 - Simplex main image

It's easy to forget that Lucien Juy patented his Simplex dropout 18 months before Tullio Campagnolo got around to patenting his (see French Patent # 1,036,415). It's also easy to forget that for some years the Simplex version was more common and arguably more desirable.