File:Dardick tround pat 2865126 fig4.png

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Summary

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File information
Description

Figure 4 of US patent 2,865,126, for the tround, by David Dardick

Source

Figure 4 of US patent 2,865,126,

Date
Author

David Dardick

Permission
(Reusing this file)

See below.


Licensing

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