Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Plural ranges – scales or registration rates
Patent
1977-10-03
1979-11-13
Rolinec, Rudolph V.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Plural ranges, scales or registration rates
313500, 313517, 350336, G01R 1508, G02F 113
Patent
active
041745000
ABSTRACT:
A plurality of measurement readout displays electrically insulated from one another are provided on a plate member, each of which displays is performed by making use of an excitable material which is capable of being visible only upon the application of a voltage thereto.
REFERENCES:
patent: 3689835 (1972-09-01), Bickfrod
patent: 3781080 (1973-12-01), Aftergut
patent: 3978404 (1976-08-01), Friend
Holler Norbert P.
Kabushiki Kaisha Sanwa Denki Seisakusho
Karlsen Ernest F.
Rolinec Rudolph V.
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