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3681246
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Information
Patent Grant
3681246
References
Source
Patent Number
3,681,246
Date Filed
Not available
Date Issued
Tuesday, August 1, 1972
51 years ago
CPC
E21F5/16 - Layers of hygroscopic or other salts deposited on floors, walls, or the like, for binding dust Deposition of such layers
US Classifications
299 - Mining or in situ disintegration of hard material
023 - Chemistry: physical processes
252 - Compositions
454 - Ventilation
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