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Patent US1402025 - FREQUENCY METER
FREQUENCY METER
NIKOLA TESLA
› Overview
Abstract
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Description
Claims
Patent number
: 1402025
Filing date
: Dec 18, 1916
Issue date
: Jan 3, 1922
Inventor
:
NIKOLA TESLA
Original Assignee
:
WAT
Current U.S. Classification
:
324/76.75
View patent at USPTO
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Drawings