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Title: Pole pieces for same magnet altering to annular gap approxim [Go to resource]
Description: Pole pieces for same magnet altering to annular gap approximately 3 7/8" to 3 5/16" License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1926-713 Go to resource More Like this...
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