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7 résultats pour : noise protection

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Demonstration with air hammer at exhibition noise abatement, Zurich 1960
UMG25A13_187

Demonstration with air hammer at exhibition noise ...

Noise measuring device of the metropolitan police Zurich 1961
UMG25A13_289

Noise measuring device of the metropolitan police ...

Noise abatement: night driving ban downtown Zurich 1972.
UMG25A10_063

Noise abatement: night driving ban downtown Zurich...

Noise abatement: night driving ban downtown Zurich 1972
UMG25A15_490

Noise abatement: night driving ban downtown Zurich...

North America, United States
UMG20B25_341

North America, United States

North America, United States
UMG20B25_340

North America, United States

Welding Streetcar Rails
UMG20A13_110

Welding Streetcar Rails