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Method for determination of boundary of seismic-hazardous
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Device for measuring the profile of drum-like spaces or cavities
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Device for measuring the profile of domal cavities
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Apparatus for preparing liquid component of simplest explosion substance
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Injector for enriching saltpeter
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Arrangement for mechanized charging of boreholes
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Device for preparing explosive charges
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Device for placing explosives
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Device for loosening frozen soil
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Device for charging boreholes with containerized explosives
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Method of thickening saggeloess grounds
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