Assignee
Inventors
- Gerald M. Heiling (7 patents)
- David A. Knodel (1 patents)
- Michael Peterson (63 patents)
- Brian Andrew Schuelke (18 patents)
- David W. Siljenberg (23 patents)
- Ronald L. Soderstrom (10 patents)
- John T. Trnka (6 patents)
US Patent 5136410 · Granted Aug 4, 1992