Matches in DBpedia 2016-04 for { ?s ?p "The P helmet, PH helmet and PHG helmet were early types of gas mask issued by the British Army in the First World War, to protect troops against chlorine, phosgene and tear gases. Rather than having a separate filter for removing the toxic chemicals, they consisted of a gas-permeable hood worn over the head which was treated with chemicals.The P (or Phenate) Helmet, officially called the Tube Helmet, appeared in July 1915, replacing the simpler Hypo Helmet."@en }
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- PH_helmet comment "The P helmet, PH helmet and PHG helmet were early types of gas mask issued by the British Army in the First World War, to protect troops against chlorine, phosgene and tear gases. Rather than having a separate filter for removing the toxic chemicals, they consisted of a gas-permeable hood worn over the head which was treated with chemicals.The P (or Phenate) Helmet, officially called the Tube Helmet, appeared in July 1915, replacing the simpler Hypo Helmet.".
- Q7119280 comment "The P helmet, PH helmet and PHG helmet were early types of gas mask issued by the British Army in the First World War, to protect troops against chlorine, phosgene and tear gases. Rather than having a separate filter for removing the toxic chemicals, they consisted of a gas-permeable hood worn over the head which was treated with chemicals.The P (or Phenate) Helmet, officially called the Tube Helmet, appeared in July 1915, replacing the simpler Hypo Helmet.".