Immagine Immagine


SourcesBesso B., Le grandi invenzioni antiche e moderne, Fratelli Treves, Milano, 1875, Vol. 3, pag. 80, fig. 93.
Despretz C., Traité élémentaire de physique, Méquignon-Marvis, Libraire-éditeur, Paris, 1832, pag. 400, TAV. 9, fig. 225.
The indications that complete the voice "Working" have the following meaning: P = partial; R = repaired; * = used for the didactics; X = verification impossible.