While "Montparnasse" is a famous district in Paris known for its artistic history, "centaines montparnas" does not have a standard technical meaning in sewing or engineering. It may be: A mistranslation:
One member recently posted: “J’ai trouvé le manuel original au marché des livres. Depuis, ma machine fonctionne sans aucun travail — vraiment work free!” (I found the original manual at the book market. Since then, my machine works with no trouble — truly work free!) work free brother pacesetter 607 manual centaines montparnas