Title: Method of forming graduations, numbers and/or marks on metallic measuring instrument
Application Number: 89103967 Application Date: 1989.06.05
Publication Number: 1047891 Publication Date: 1990.12.19
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C23F1/02
Applicant(s) Name: Shinwa Sokutei K.K. Address:
Inventor(s) Name:
Attorney & Agent: WANG SHEN
Abstract:
     The method is for engraving graduations, characters, marks on metallic measuring devices. In this invention, only one photosensitive film is used for protective erosion and plating. The photosensitive film can be removed easily with a cleaning solvent. So, high efficiency is gained and any problem of defect avoided.
Time: 10