Application of Tanke

O'CONNELL, Judge.

This is an appeal from the decision of the Board of Appeals of the United States .Patent Office; rendered thereby under Rule 206(b) of the Rules of Practice, 35 U.S.C.A. Appendix. The decision affirmed that of the Primary Examiner rejecting claims 34 through 48 of appellants’ application filed July 15, 1947, for a patent on certain improvements in “Draft Means and Depth Control for Ground Working Implements,” such as a plow “detachably connected with, and op-eratively carried by, a tractor in trailing relation thereto.” Claim 32 was allowed.

The reference is:

Strandlund…