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Pam Trobiano Pam Trobiano

Pam Trobiano - PowerPoint Presentation

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Uploaded On 2016-02-20

Pam Trobiano - PPT Presentation

The invention of Spectacles What are spectacles Eye Protection Vision Correction Includes safety glasses and sunglasses Types Corrective Reading Bifocal Trifocal Progressive Adjustable Lenses Safety ID: 224895

glasses spectacles org lenses spectacles glasses lenses org www http amp 1950 safety bifocals invention scissor

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