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Electrode control for sump pumps
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Object NumberUS.0048

TitleElectrode control for sump pumps
Date10/24/1947
Collection Maps, Surveys & Infrastructure
NotesUS-122. Folded.
Access NoteAccess to Property Information Resource Center collections is restricted to approved Harvard University staff, or by permission.
Reproduction NoteNo portion of this object shall be reproduced, released, or distributed by any means without the express written permission of the Harvard University Property Information Resource Center.
ConditionPoor
DimensionsOverall: 18 x 23 in. (45.7 x 58.4 cm)
MediumGraphite
Support / MaterialTransparent paper

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