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Individual
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Individual
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Priority to FR7006843ApriorityCriticalpatent/FR2077939B1/fr
Priority to CH224371Aprioritypatent/CH547402A/fr
Priority to DE19712108368prioritypatent/DE2108368A1/de
Publication of FR2077939A1publicationCriticalpatent/FR2077939A1/fr
Application grantedgrantedCritical
Publication of FR2077939B1publicationCriticalpatent/FR2077939B1/fr
E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
E01H5/12—Apparatus or implements specially adapted for breaking, disintegrating, or loosening layers of ice or hard snow with or without clearing or removing ; Roughening ice or hard snow by means of tools