Apparatus for roughening and cleaning a surface or the like

- Von Arx AG
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Description

FIG. 1 is a perspective view of the apparatus for roughening and cleaning a surface or the like taken from the top, front and left sides thereof and showing my new design, and

FIG. 2 is a perspective view thereof taken from the top, front and right sides thereof, and

FIG. 3 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
D118581 January 1940 Holt
D131286 February 1942 Pond
D172168 May 1954 Meagher
Patent History
Patent number: D252881
Type: Grant
Filed: May 13, 1977
Date of Patent: Sep 11, 1979
Assignee: Von Arx AG (Sissach)
Inventor: Paul Dummermuth (Zunzgen)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Catherine Kemper
Application Number: 5/796,802
Classifications
Current U.S. Class: D15/48; D15/50
International Classification: D1505;