Assertion: dean | /r/CapableOf | hold 3 of the original 9 patents
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Source sentences:
text: Dean holds 3 of the original 9 patents on the computer that all PCs are based upon: Soon after joining IBM, Dean and a colleague, Dennis Moeller, developed the interior achitecture (ISA systems bus) that enables multiple devices, like modem and printer, to be connected to personal computers.