Inventor

NUMABE HITOMI

4 patents

Patents

4 patents

US4051663AOct 4, 1977

Electronic timepiece

SUWA SEIKOSHA KK23 citations80

US4043109AAug 23, 1977

Electronic timepiece

SUWA SEIKOSHA KK9 citations69

US3992871ANov 23, 1976

Chronograph wristwatch

SUWA SEIKOSHA KK13 citations69

US4287585ASep 1, 1981

Chronograph wristwatch

SUWA SEIKOSHA KK4 citations58