G04D 5/00

Technology



back to "G04D 5/00" profile

More Results

Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9010997 Electronic timepieceMar 14, 11Apr 21, 15CITIZEN WATCH CO., LTD.
4335596 Device for measuring the operation of a timepiece movementOct 30, 79Jun 22, 82Portescap