microbalance

1931~1945

The first version of the table with movable type rarely used word

Ministry of Economic Affairs Technician Registration Certificate

1954

National Cheng Kung University,School magazineSocieties,Stamp

tangent galvanometer

1953~1962

Absorbers

1953~1962

Medium NIEDERVOLT 2 Projector

Phosphor Bronze Ribbon Suspension

1953~1962

Font

Microamperes

1951

Camera lens

Desktop galvanometer

1953~1962

circuit switch

1965

Font

Font

power supply

1965

Vault

1962~1980

Carved Wood Screens with NCKU logo

voltage transformer

1931~1945

Taiwan Provincial Architectural Technician Association membership certificate

1954