TOHKOH Transit 5inch
1933-34

TOHKOH Transit 4inch
1933-34

TOHKOH Transit 3inch half
1933-34

TOHKOH Transit 2inch
1933-34

TOHKOH Simple Transit
1935-45

Pilot Balloon Theodolite
1935-45

5"Transit
1946

4"Transit
1946

3.5 Transit
1947

TOHKOH Transit 145mm
1951

120mm Transit
1955

Transit A
1959

Transit AB
1962

Transit AG
1963

Transit A2
1964

Transit AG2
1964

Theodolite TL-10A
1965

Theodolite TL-20
1967

Theodolite TL-10B
1972

Theodolite TL-20S
1972

Theodolite
TL-series
1977

Theodolite new
TL series
1978

Theodolite
AG-20P
1978

Theodolite
AG-30P
1978

Laser Theodolite
LTL-20P
1978

Theodolite
TL-6DE
1979

Transit
AG-20BP
1978

Transit
AG-30BP
1978

Theodolite
TL-D series
1980

Theodolite
TL-1E
1981

Digital Theodolite
DT-20 series
1983

Electronic Theodolite ETL-1
1986

Laser Theodolite
LTL-10DP
1986

Digital Theodolite
DT-10/30
1987

Laser Theodolite
LTL-20DP
1987

Theodolite
TL-G series
1990

Digital Theodolite
DT-20B
1991

Digital Theodolite
DT-100 series
1995

Electronic Laser Theodolite ETL-1L
1998

Digital Theodolite
DT-110 series
1998

Digital Theodolite
DT-200 series
2003