File:PSM V14 D424 Elisha Gray.jpg

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Description

Elisha Gray

Date

between 1878 and 1879

Source

Author

Unknown author

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File history

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	09:02, 2 January 2016		1,918 × 2,095 (596 KB)	wikimediacommons>Ineuw	Cleaned image and improved contrast

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