gebrochene Kante = unbearbeitete Kante
gesäumte Kante = einfachste Form einer bearbeiteten Kante
http://tiny.cc/au0hxw

CLEAN CUT EDGES (often abbreviated CCE) are raw, unfinished cut glass edges; i.e. they’re sharp. Because it is an unfinished edge, thicker glass will likely show wavers or flares.

SEAMED or SWIPED EDGES have the sharpness of the cut edge removed, but are still unfinished, so they’ll show wavers & flares (particularly in glass 1/4″ and thicker). Seaming/swiping is done strictly a safety measure, to make cut glass easier to handle. It is recommended for use when the glass edge will be fully concealed after installation.
http://atkinsonsglass.blogspot.ca/2012/02/glass-edge-and-cor...

Therefore:
gebrochen=clean cut
gesäumt= seamed/swiped edges