HO

Hisashi Ogawa

SH Shinwa: 2 patents #1 of 1Top 100%
Overall (1989): #25,706 of 140,708Top 20%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4843499 Tape winding direction switch device of cassette tape recorder 1989-06-27
4811145 Head device of tape player 1989-03-07