| 31. | Measurement of airborne noise emitted by machines ; enveloping surface method ; woodworking machines ; panel sizing machines
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| 32. | Measurement of airborne noise emitted by machines ; enveloping surface method , oxy - fuel gas and plasma torches and machines
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| 33. | Measurement of airborne noise emitted by machines ; enveloping surface method ; form for measurement report , comminuting machines
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| 34. | Measurement of airborne noise emitted by machines ; enveloping surface method ; metal working machines , gear hobbing machines
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| 35. | Measurement of airborne noise emitted by machines ; enveloping surface method ; mine diesel locomotives and mine road railers
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| 36. | Noise measurement on machines ; airborne noise measurement , enveloping surface method , air - cooled heat exchangers air coolers
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| 37. | Measurement of airborne noise emitted by machines ; enveloping surface method ; machinery for the processing of plastic and rubber
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| 38. | Measurement of airborne noise emitted by machines ; enveloping surface method ; woodworking machines ; table band sawing machines
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| 39. | Measurement of airborne noise emitted by machines ; enveloping surface method ; woodworking machines ; double end tenoning machines
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| 40. | Measurement of airborne noise emitted by machines ; enveloping surface method , woodworking machines , one side moulding machines
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