Assignee
No assignee recorded.
Inventors
- Unknown
- William W. Wood (27 patents)
- Unknown
- William James Ryan (3 patents)
- Richard C. Titmas (13 patents)
- Mark D. Schwinden (7 patents)
- Unknown
- Unknown
- Steven M. Torkelson (11 patents)
US Patent 9840457 · Granted Dec 12, 2017
No assignee recorded.