Subject
- Coins4
- Factories4
- Infrared spectroscopy4
- Amplifiers (Electronics)3
- Beckman Instruments, Inc. Spinco Division3
- Bridge circuits3
- Pins and needles3
- Rulers (Instruments)3
- Breakdown voltage2
- Electric resistance2
- Electrodes2
- Employees2
- Gases--Analysis2
- Hospitals2
- Infants2
- Los Angeles County General Hospital2
- Medical laboratories--Equipment and supplies2
- Newborn infants--Medical care2
- Pencils2
- Portraits, Group2