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All G.R.A.S. Sound & Vibration catalogues and technical brochures

  1. Here the first 2 pages from the catalogue "¼-inch Prepolarized, Pressure Microphone Type 40BD"

  2. Here the first 2 pages from the catalogue "Environmental Microphone Types 41AO/41AO - S"

  3. Here the first 2 pages from the catalogue "Environmental Microphone Type 41AL"

  4. Here the first 2 pages from the catalogue "Array Microphone Type 40PL 1"

  5. Here the first 2 pages from the catalogue "Array Microphone Type 40PH"