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Image: US114945 - Patents for Injection Moulding by John Wesley Hyatt (Diagram 1)

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Description: Fig 1- The images shows billard ball made from celluloid Fig 2 - Cross section of billard balls Fig 3 - Injection moulding apparatus Fig 4 - Front view of injection moulding apparatus
Title: US114945 - Patents for Injection Moulding by John Wesley Hyatt (Diagram 1)
Credit: This file has been extracted from another file: US114945 Improvement in processes of coating billiard-balls, knife-handles, and other articles.pdf
Author: John Wesley Hyatt
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

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