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Asymmetrical button insert for rock drilling
D371146 Asymmetrical button insert for rock drilling
Patent Drawings:Drawing: D371146-2    Drawing: D371146-3    
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(2 images)

Inventor: Fischer, et al.
Date Issued: June 25, 1996
Application: D/037,415
Filed: April 12, 1995
Inventors: Fischer; Udo (Vallingby, SE)
Hartzell; Torbjorn (Stockholm, SE)
Karki; Kauko (Skogas, SE)
Assignee: Sandvik AB (Sandviken, SE)
Primary Examiner: Davis; Antoine Duval
Assistant Examiner:
Attorney Or Agent: Burns, Doane, Swecker & Mathis
U.S. Class: D15/139
Field Of Search: D15/139; 175/371; 175/389; 175/398; 175/396; 175/415; 175/418; 175/419; 175/425; 175/426; 175/427; 175/428; 175/429; 175/430; 175/431; 175/432; 175/433
International Class:
U.S Patent Documents: D357485; D357486; 4359335; 4722405; 5172777; 5172779; 5421424
Foreign Patent Documents:
Other References:









Abstract:
Claim: The ornamental design for an asymmetrical button insert for rock drilling, as shown.
Description: FIG. 1 is a right side view of an asymmetrical button insert for rock drilling showing our new design;

FIG. 2 is a side view of the asymmetrical button insert for rock drilling taken at 90.degree. of the view of FIG. 1;

FIG. 3 is a front end view of the asymmetrical button insert for rock drilling;

FIG. 4 is a perspective view, taken from the right side and sightly above, of the asymmetrical button insert for rock drilling; and,

FIG. 5 is a perspective view showing the opposite side of the asymmetrical button insert for rock drilling shown in FIG. 4.

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