Grain drill depth adjustment tool

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Description

FIG. 1 shows a front perspective view of a grain drill depth adjustment tool.

FIG. 2 shows a back perspective view thereof.

FIG. 3 shows a top view thereof.

FIG. 4 shows a bottom view thereof.

FIG. 5 shows a right side view thereof.

FIG. 6 shows a left side view thereof.

FIG. 7 shows a front elevational view thereof; and,

FIG. 8 shows a back elevational view thereof.

Claims

The ornamental design for a grain drill depth adjustment tool, as shown and described.

Referenced Cited
U.S. Patent Documents
308545 November 1884 Altman
D270032 August 9, 1983 Mayo
4580507 April 8, 1986 Dreyer et al.
4726304 February 23, 1988 Dreyer et al.
D302558 August 1, 1989 Davis et al.
D306685 March 20, 1990 Nadeau
5145018 September 8, 1992 Schimke et al.
D397594 September 1, 1998 Harper
D397596 September 1, 1998 Morin
5983813 November 16, 1999 Swab et al.
D424385 May 9, 2000 Tisbo et al.
D440476 April 17, 2001 Del Gaone
D487099 February 24, 2004 Bruns et al.
Patent History
Patent number: D521531
Type: Grant
Filed: Dec 9, 2004
Date of Patent: May 23, 2006
Inventor: Wynn Provines (Vandalia, IL)
Primary Examiner: Gary D. Watson
Assistant Examiner: T. Chase Nelson
Attorney: Kevin L. Klug
Application Number: 29/218,904
Classifications
Current U.S. Class: Element Or Attachment (4) (D15/28); D8/1; D8/70