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Microvoltmeter and micro-microammeter
- maker:
- Hewlett Packard Company
D.C. valve microvoltmeter and micro-microammeter model 425A no. G201 01361, by Hewlett Packard, Boeblingen, West Germany, complete with mains lead, input lead and probe
D.C. valve microvoltmeter and micro-microammeter model 425A no. G201 01361, by Hewlett Packard, Boeblingen, West Germany, complete with mains lead, input lead and probe