Bekijk winkelwagen “Letter of patent for André Michel Massonnet from Paris for an invention regarding “certain improvements in alloys of metal and of other substances and also in the application of the same to various usefull purposes”.” is toegevoegd aan je winkelwagen.
SCHWACHHOFER— Correspondentie tussen C. de Jong en Jean Rongy te Alleur, 1981, betr. fam. Schwachhofer. Manuscript, 3 pag.
