Assignee
Inventors
- Robert Willem Goldbach (3 patents)
- Dirk Peters (3 patents)
- Johannes Jacobus Ludgerus Gielen (10 patents)
- Petrus Theodorus De Haan (10 patents)
- Arnoldus Johannes Kool (3 patents)
- Martinus Quirinus Joseph Marie van Grinsven (2 patents)