At the end,they say "A Warner Bros. Cartoon" and below it,they say "A Vitagraph Release".What does Vitagraph mean?

At the end,they say "A Warner Bros. Cartoon" and below it,they say "A Vitagraph Release".What does Vitagraph mean?
Vitagraph Studios was a film studio that operated in New York City in the early 1900's in the silent movie era. In 1926 Vitagraph Studios was purchased by Warner Brothers. In the 1960's Warner Brothers attached the Vitagraph name to the end of their cartoons in order to protect their copyright on the Vitagraph name.

"Vitaphone" and "Vitagraph" were interchangeable. "The Vitaphone Corporation", which was the company that controlled the studio's first "sound-on-disc" film releases from 1926 through '30, later becoming the subsidiary that released the studio's short subjects and cartoons from the '30s through the late '50s (which were copyrighted under that name), was officially dissolved at the end of 1959. Yet, as 'Marvo' has stated, they continued to use the "Vitaphone" name to keep the trademark alive {they also used it on their record albums, i.e. "Vitaphonic High Fidelity" and "Vitaphonic Stereo"}.

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