What follows is an opinion from a United States Court of Appeals. Your task is to identify whether the opinion writter is identified in the opinion or whether the opinion was per curiam.

DE VRY CORPORATION v. ACME MOTION PICTURE PROJECTOR CO. (three cases).
(Circuit Court of Appeals, Seventh Circuit.
December 8, 1925.)
Nos. 3566-3568.
Patents <©=>328 — No. 1,287,576, claims 1-4, No. 1,303,542, claims 1-8, No. 1,303,543, claims 1-10, 17, 18, for motion picture projectors, held invalid for lack of invention.
Patents No. 1,287,576, claims 1-4, No. 1,303,-542, claims 1-8, No. 1,303,543, claims 1-10, 37, 3.8, for motion picture projectors, held invalid for lack of invention.
Appeals from the District Court of the United States for the Eastern Division of the Northern District of Illinois.
Suits hv the De Vry Corporation against the Acme Motion Picture Projector Company. Decrees for defendant, and plaintiff appeals.
Affirmed.
Fred Gerlach, of Chicago, Ill., for appellant.
Luther Johns, of Chicago, Ill., for appellee.
Before ALSCHULER, PAGE, and ANDERSON, Circuit Judges.
ANDERSON, Circuit Judge.
These appeals were heard together on one record. The claims relied on in No. 3566 are 1, 2, 3, and 4 of patent No. 1,287,576, in No. 3567 1 to 8 of patent. No. 1,303,542, and in No. 3568 1, 2, 3, 4, 5, 6, 7, 8, 9,10,17, and 18 of patent No. 1,303,543, all"issued to the appellant as assignee of Herman De Vry. The court below dismissed all the bills for want of equity.
. The patents relate to motion picture projectors, and have for their object the production of a kind of projector known as the suit case, or self-contained, type. Appellant contends that “the patents in suit are for the first successfully self-contained, or suit case, portable projector.” All of the elements of the claims are old. The invention is said to reside in the combination of those elements. The insistence is that De Vry was the first p.erson to successfully put these elements into a practicable portable container.- Each element functions in the container just as it does when not in a container. The bringing together of these elements and arranging them so that they are ready, while in the container, to perform their old and well-known functions, is not invention. It is mere aggregation.
The deeree is affirmed.

Question: Is the opinion writer identified in the opinion, or was the opinion per curiam?
A. Signed, with reasons
B. Per curiam, with reasons
C. Not ascertained
Answer: