File:Ericsson carbon microphone opened.jpg

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DescriptionEricsson carbon microphone opened.jpg	English: The insides of an Ericsson carbon microphone from a telephone. Some of the carbon has fallen out of the central hole.
Date	10 September 2012, 01:55:40
Source	Own work
Author	Olli Niemitalo

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	The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission. CC0falsefalse

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	22:58, 9 September 2012		2,117 × 1,438 (650 KB)	Olli Niemitalo	User created page with UploadWizard

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