Patent classifications
G
PHYSICS
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G01
MEASURING; TESTING
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G01R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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1/00
Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
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G01R1/20
Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
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