The Collaborative International Dictionary of English v.0.48:

Bonnaz \Bon"naz\, n.
   A kind of embroidery made with a complicated sewing machine,
   said to have been originally invented by a Frenchman of the
   name of Bonnaz. The work is done either in freehand or by
   following a perforated design.
   [Webster 1913 Suppl.]