What follows is an opinion from a United States Court of Appeals. Your task is to identify the type of district court decision or judgment appealed from (i.e., the nature of the decision below in the district court).

Opinion:
Vincent W. ECKEL, Appellant, v. David L. LADD, Commissioner of Patents, Appellee.
No. 19105.
United States Court of Appeals District of Columbia Circuit.
June 3, 1965.
Petition for Rehearing Denied June 28, 1965.
Certiorari Denied Nov. 8, 1965.
See 86 S.Ct. 243.
Mr. William Douglas Sellers, Pasadena, Cal., with whom Messrs. George A. Brace, Pasadena, Cal., and Munson H. Lane, Washington, D. C., were on the brief, for appellant.
Mr. S. William Cochran, Atty., U. S. Patent Office, with whom Mr. Clarence W. Moore, Sol., U. S. Patent Office, was on the brief, for appellee.
Before Prettyman, Senior Circuit Judge, and Wright and Tamm, Circuit Judges.
ORDER
PER CURIAM.
This cause came on to be heard on the record on appeal from the United States District Court for the District of Columbia, and was argued by counsel.
This court being in general agreement with the opinion filed herein by the District Court, Eckel v. Ladd, D.D.C., 233 F.Supp. 879 (1964); 1438(1).
It is ordered that the judgment of the District Court be, and it is hereby, affirmed. See Zenith Radio Corporation v. Ladd, 114 U.S.App.D.C. 54, 57, 310 F.2d 859, 862 (1962).

Question: What is the type of district court decision or judgment appealed from (i.e., the nature of the decision below in the district court)?

Choices:
Trial (either jury or bench trial)
Injunction or denial of injunction or stay of injunction
Summary judgment or denial of summary judgment
Guilty plea or denial of motion to withdraw plea
Dismissal (include dismissal of petition for habeas corpus)
Appeals of post judgment orders (e.g., attorneys' fees, costs, damages, JNOV - judgment nothwithstanding the verdict)
Appeal of post settlement orders
Not a final judgment: interlocutory appeal
Not a final judgment: mandamus
Other (e.g., pre-trial orders, rulings on motions, directed verdicts) or could not determine nature of final judgment
Does not fit any of the above categories, but opinion mentions a "trial judge"
Not applicable (e.g., decision below was by a federal administrative agency, tax court)

Answer: 9