TREA

using sleeves, rings or the like, as main fixing elements

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Industry

  • CPC
  • E21C35/197
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21CMINING OR QUARRYING E21C35/00Miscellaneous items relating to machines for slitting or completely freeing the mineral from the seam

Current Industry

E21C35/197using sleeves, rings or the like, as main fixing elements
Industries