Assignee
No assignee recorded.
Inventors
- Katsuji Yamamoto (6 patents)
- Unknown
- Akira Adachi (28 patents)
- Toshiro Kawata (7 patents)
- Keisuke Nagano (3 patents)
- Seiichi Fujita (6 patents)
- Mikio Harada (6 patents)
US Patent 4268295 · Granted May 19, 1981
No assignee recorded.