Lambrecht, Wilhelm

Wilhelm Lambrecht, Göttingen
Meteorological instruments maker since 1859

LBFG

Founded in Paris.

Lerebours

Lerebours made telescopes since 1799. In 1844 the firm constructed a big refractor of 38cm for the Observatory of Paris (then the biggest in the world with this of Poulkovo Observatory). Lerebours is mentioned by Jules Verne in his book "From Earth to the Moon".

Merz, Jacob

Jacob Merz, Munich
Georg Merz (1793-1867 was Fraunhofer pupil and constructed some of the most famous 19th c. telescopes. After his death Merz factory was runned by his son Sigmund and after him his nephew Jacob

Morin - Secrétan

H. Morin - Secrétan
Marc François Louis Secrétan (1804 – 1867), professor of mathematics in Lausanne settled to Paris in 1844 where he became a partner of the instruments maker Lerebours. The enterprise was continued by his sons and after 1955 by thirds.

Nardin, Ulysse

Ulysse Nardin, Switzerland
Ulysse Nardin (1823-1876) founded the firm in 1846

Paul-Gustave Froment

Paul-Gustave Froment, born in Paris on 3 March 1815 and died in Paris on 10 February 1865, is a French inventor and mechanic.

A former student of the Lycée Louis-le-Grand and then of the École Polytechnique, he worked, among other things, on the telegraph with written and keyboard signals, the loom, Hughes printing machine, electric motors and With Léon Foucault on the gyroscope. He also made the pendulum of the latter.

He collaborated with Arago, Pouillet, Fizeau, Desains and Lissajous.

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