There is a Maxwell Fietsen company in the Nethlands (
https://www.maxwellfietsen.com/ ) that could be related. While their current product line is solely e-bicycles, that could have have been a strategic, marketing move. Unfortunately, I couldn't find any company history on their site.
Also, from a Dutch Wipedia entry:
"Maxwell is a historic Dutch brand of bicycles, transport tricycles and motorcycles.
A. Druyf & Co., later Maxwell Rijwielfabriek A. Druyf & Co., Amsterdam.
This Dutch brand made transport tricycles with Gillet blocks in the 1930s and also sold complete motorcycles. These were probably Gillet products that were provided with other transfers. From 1954 to the early 1960s, mopeds were made with Austrian HMW blocks.
The bicycle factory was located at Oudezijds Voorburgwal 131"