Assignee
Inventors
- Peter Paul HEMPENIUS (15 patents)
- Johan Geerke (30 patents)
- Youssef Karel Maria De Vos (15 patents)
- Nicolaas Bernardus Roozen (16 patents)
- Erwin Antonius Henricus Fransiscus Van Den Boogaert (3 patents)
- Alexander Cornelis Geerlings (6 patents)