| Country of Origin | United States |
|---|
Check the listing for details. HP Hewlett Packard Time Domain Reflectometry Slide Rule Calculator Vintage 1965. Condition: Used, Made in United States. Listed at 9.75 USD. Vintage 1965, Time Domain Reflectometry Calculator slide rule. Has normal discoloration from age, and has obvious wear on 1 side, as pictured. It is priced accordingly. All writing is still very legible. Please see photos for condition.
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