H. Labitte 26 rue de Ménilmontant, Paris
There are two Labitte firms: Hyppolite and Eugène both specialists in light engines.
This firm acquired Landru in 1900.
Eugène Labitte had sold his plans and patents to Dalifol. (Bourdache p44)
Bourdache Labitte (E.) pp 44, 84, 86, 99, 109, 141, 142.