Fokker Unknown Projects

From Czech National Technic Museum,

I found those unknown Projects for Fokker,F.XXXIX,F.XXXXII & F.XXXXXVII,or F.39,
F.42 & F.57,does anyone hear about them ?.

http://docplayer.cz/24086444-Bittnerova-sbirka-sbirka-la.html

Bijlage 32669