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Subject
- Beckman Instruments, Inc.335
- Potentiometer139
- Scientific apparatus and instruments75
- Microelectronics64
- Voltage regulators36
- Oxygen--Measurement19
- Oxygen--Analysis16
- Passive components14
- Electric switchgear13
- Ladder networks12
- Ceramic metals11
- Hydrogen-ion concentration--Measurement--Instruments11
- Analog-to-digital converters10
- Beckman, Arnold O.8
- Electric resistors6
- Servomechanisms6
- Centrifuges5
- Coins4
- Hydrogen-ion concentration4
- Infants4