Patent classifications
H
ELECTRICITY
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H02
GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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H02G
INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
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9/00
Installations of electric cables or lines in or on the ground or water
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H02G9/02
laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
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H02G9/025
Coverings therefor, e.g. tile
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