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William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.

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Class D05/8 - Simulative

Subclass of Class D05 - Textile or paper yard goods; sheet material
Definition: Design that includes an ornamental feature or features
No. of patents: 1
Last issue date: 06/21/2011

Number	Title	Issue Date
D640061	Wicker yarn	06/21/2011