Specification for low voltage switchgear and controlgear for industrial use. Inductive proximity switches. Form C, for alternating current, 2 terminals
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Specification for low-voltage switchgear and controlgear for industrial use. Inductive proximity switches. Form D, for alternating current, 2 terminals
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Specification for zones of comfort and reach for controls in earth-moving machinery
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Petrographic analysis of bituminous coal and anthracite-Glossary of terms relating to the petrographic analysis of bituminuous coal and anthracite
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Petrographic analysis of bituminous coal and anthracite-Method of preparing coal samples for petrographic analysis
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Petrographic analysis of bituminous coal and anthracite-Method of determining maceral group composition of bituminous coal and anthracite
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Petrographic analysis of bituminous coal and anthracite-Method of determining maceral group composition of bituminous coal and anthracite
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Petrographic analysis of bituminous coal and anthracite-Method of determining microlithotype, carbominerite and minerite composition
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Petrographic analysis of bituminous coal and anthracite-Method of determining microscopically the reflectance of vitrinite
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Petrographic analysis of bituminous coal and anthracite-Method of determining microscopically the reflectance of vitrinite
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