Amplifier for Perkin-Elmer double beam infrared spectrophotometer
Amplifier for Perkin-Elmer double beam infrared spectrophotometer, Model 21, 1950
- Object Number:
- 1970-205/2
Perkin-Elmer double beam infrared spectrophotometer, Model 21, 1950 (see stroke records)
Amplifier for Perkin-Elmer double beam infrared spectrophotometer, Model 21, 1950