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Description
Precision laboratory voltmeter with hand-alibrated scales. 0-3 volts and 0-150 volts. Mounted on wooden base. Patent label on front of unit lists patent years from 1886-1890.
Type
image
Identifier
EF723327-0CA7-4628-885E-191149402262 2003-1-786
Subject
Testing Electric apparatus and appliances (LCSH) Scientific apparatus and instruments (LCSH) Nineteenth century (LCSH) Electric currents (LCSH) Voltmeters (LCSH)
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