Katsuaki Kumazaki

TA Tandy: 1 patents #2 of 3Top 70%

Overall (1982): #49,966 of 81,411Top 65%

Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4327254	Ringer circuit for telephone	—	1982-04-27