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Subject
- Beckman Instruments, Inc.313
- Potentiometer136
- Microelectronics64
- Scientific apparatus and instruments61
- Voltage regulators36
- Passive components14
- Electric switchgear13
- Ladder networks12
- Ceramic metals11
- Oxygen--Measurement11
- Analog-to-digital converters10
- Oxygen--Analysis9
- Hydrogen-ion concentration--Measurement--Instruments8
- Electric resistors6
- Servomechanisms6
- Spectrophotometer6
- Beckman, Arnold O.5
- Centrifuges5
- Coins4
- Amplifiers (Electronics)3