Image:Gravity cell.gif

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[edit] Summary

Engraving of a gravity cell from the Cyclopedia of Telegraphy and Telephony, published in 1919.

[edit] Licensing

This image is in the public domain in the United States. In most cases, this means that it was first published in the United States prior to January 1, 1923 (see the talk page for more cases). Other jurisdictions may have other rules, and this image might not be in the public domain outside the United States. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.

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(del) (cur) 12:13, 3 January 2007 . . Kurzon (Talk | contribs) . . 553×700 (68,142 bytes) (Engraving of a gravity cell from the Cyclopedia of Telegraphy and Telephony, published in 1919.)