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3493989
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Information
Patent Grant
3493989
References
Source
Patent Number
3,493,989
Date Filed
Not available
Date Issued
Tuesday, February 10, 1970
55 years ago
CPC
E01H1/0809 - Loosening or dislodging by blowing ; Drying by means of gas streams
E01H5/10 - by application of heat for melting snow or ice, whether cleared or not, combined or not with clearing or removing mud or water
E01H2001/089 - Suction-effect created through blowing
US Classifications
015 - Brushing, scrubbing, and general cleaning
037 - Excavating
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