Hi,
I hope you've managed to identify the item. In case you haven't, I'd just like to say that, IMHO, it is definitely not a kujang or kudi as generally recognised by the Sunda. Its form doesn't have the right 'flow'; it's too 'rigid' (even for a Badek Patani or a Badik). The dapur is more akin to a 'Suduk Maru', which is not restricted to pedangs. Of note is that there doesn't appear to be a definite 'inclination'/'curving' of the back-edge w.r.t. the tang, as is characterised by all of the above implements. Hope it helps in some way.
BTW,.. is this the one from Brunssum?
Groeten