Google Doodle Julius Richard Petri

Google Doodle on May 31st, 2013 about Julius Richard Petri.

• 2013-05-30T17:05:55+00:00
• Duration: 01:13

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Google Doodle of Today, Julius Richard Petri, Google, Doodle, Google Doodle, 2013, technology, HD, HQ, german bacteriologist