Assignee
Inventors
- Thaddeus Schroeder (104 patents)
- Bruno Lequesne (52 patents)
- Donald E. Lake, deceased (9 patents)
- John S. Zgunda (1 patents)
- Daniel I. Feaster (1 patents)
- George A. Shinkle (3 patents)
- Robert W. Ward (23 patents)
US Patent 5216405 · Granted Jun 1, 1993