Basic Construction For 35dB Average Sound-Insulating Door

  • This material is held at
  • Reference
      GB 2080 TPC/1/14/1/1
  • Dates of Creation
      02 August 1971
  • Physical Description
      1 drawing

Scope and Content

Hall Stage Equipment Ltd sketch number E 3148/1. Drawn by [J S].

Access Information

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