Patent classifications
E
FIXED CONSTRUCTIONS
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E02
HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
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E02D
FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
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3/00
Improving or preserving soil or rock, e.g. preserving permafrost soil
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E02D3/046
by tamping or vibrating, e.g. with auxiliary watering of the soil
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E02D3/068
Vibrating apparatus operating with systems involving reciprocating masses
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