Bollée's Multiplier was the second successful direct-multiplying calculator (the first was Ramón Verea's) and it won a gold medal at the 1889 Paris Exposition.

Three versions of the large multiplier and several smaller machines were developed by Bollée and the devices were patented in France, Belgium, Germany, the USA and Hungary.

[1] In 1892, his father, Amédée Bollée produced a steam locomotive for the Chemin de fer du Finistère.

The position of the passenger, at the front, earned the Voiturette the nickname "Mother-in-law killer" ("Tue Belle-mère", in French).

Both won the "Blackport Southport Speed Trials", in September 1904, in front of Dorothy Levitt's Gladiator.

In 1927 she donated an engine to the Museum of Le Mans, which had been reassembled by Wilbur Wright and her husband from the two originally sent out from the USA.

Morris sold the company in 1931 to a group of investors who renamed it Societé Nouvelle Léon Bollée and production continued until 1933.