http://www.w3.org/ns/prov#value | - scopes, sampling osciilloscopes, voltage sources, massive range of instrumentation - the catalogue was a like a reference book, then the HPIB/IEEE488 instrumentation bus to control them all (it was a daisy chain not a ring - probably not a literary joke), then a range of well pre-PC calculators" starting with a huge HP7000(?) HP85-87, pocket scientific calculators HP15 onward
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