His father , Ralph J. Roberts , who founded the company , took him along to a meeting nearly four decades ago , when Comcast was planning to go public .
Ralph J. Roberts /business/company_shareholder/major_shareholder_of Comcast
Ralph J. Roberts /business/person/company Comcast
Comcast /business/company/founders Ralph J. Roberts
Comcast /business/company/major_shareholders Ralph J. Roberts
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