4. Chemistry of inorganic compounds
  5. Phosphorus or compound thereof
  6. Oxygen containing

Hans Haas

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Exploration of the boundaries of an underground coal seam

Communications: electrical – Selective – Having electron beam device
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Lung-controlled diaphragm valve

Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
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Manufacture of concentrated aqueous solutions of formaldehyde

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
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Manufacture of formaldehyde

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
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Manufacture of formaldehyde

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
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Profile ID: LFUS-PAI-P-22279

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