Just to clarify an interesting point, the Mosler-Bahmann company continued in business long after Gustav Mosler left to form his own company. Some sources claim that Mosler-Bahmann became the new company. That they existed in parallel (and presumably in competition against each other) can be seen as late as 1898 when a New York legal directory lists them both, at separate addresses (but two blocks apart, on Broadway).
Why did Mosler-Bahmann not change their name? I suppose one reason is name recognition for their products. And even though Mosler became successful on his own, this extra recognition may have spilled over into Mosler-Bahmann orders by customers who assumed there was some connection between the two.