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Dr. Marian Croak: Inventor of VOIP | Innovation Nation
Change for the Greater Good: The Marian Croak Story
Marian Croak, the Inventor of the VoIP technology
Dr. Marian Croak VoIP, Voice over internet protocol.
Dr. Marian Rogers Croak | The Brilliant Inventor of Voice Over Internet Protocol Technology
Inventor Card Unveiling: Marian Croak
#rediscoveringhistory Marian Croak inventor of Voice over IP and holds over 200 Patents
Dr. Marian Croak, The Black Woman You Can Thank For Internet Call Technology | TSR DidYouKnow
Dr Marian Croak American Black Excellence
Marian Croak - History of innovation comes in bursts
An Insight with Marian Croak and Lindiwe Matlali | Pioneers of Change
Marian Croak’s Hall of Fame Induction
