Reference Material Links:

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https://www.google.com/?safe=active&ssui=on

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https://patents.google.com

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https://www.loc.gov

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https://docs.google.com/presentation/d/1TedHnHsIngxgtgBFzZMBzuftKQbWmbblWla7VxMjBOo/edit#slide=id.p

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