Assignee
Inventors
- Cornelius Antonius Hezemans (16 patents)
- Bernardus Hendrikus Wilhelmus Hendriks (174 patents)
- Waltherus Cornelis Jozef Bierhoff (34 patents)
- Augustinus Laurentius Braun (8 patents)
- Adrien Emmanuel Desjardins (23 patents)
US Patent 8977343 · Granted Mar 10, 2015