Task: songer_circuit

What follows is an opinion from a United States Court of Appeals. Your task is to identify the circuit of the court that decided the case.

PER CURIAM.
This is a suit under R.S. § 4915, 35 U.S. C.A. § 63, to obtain a patent on a snap-on cover for a container. In our opinion the finding of the trial court that the claims do not show invention over the prior art is consistent with the evidence. The judgment dismissing the complaint is therefore affirmed. Abbott v. Coe, 71 App.D.C. 195, 109 F.2d 449.

Question: What is the circuit of the court that decided the case?
A. First Circuit
B. Second Circuit
C. Third Circuit
D. Fourth Circuit
E. Fifth Circuit
F. Sixth Circuit
G. Seventh Circuit
H. Eighth Circuit
I. Ninth Circuit
J. Tenth Circuit
K. Eleventh Circuit
L. District of Columbia Circuit
Answer:

Answer: L