Wells Mfg. Corp., a Wisconsin Corporation v. Littelfuse, Inc., a Texas Corporation

WOOD, Circuit Judge.

In this patent case, Plaintiff-Appellee Wells Mfg. Corp. (hereinafter referred to as “Wells”) brought suit against Defendant-Appellant Littelfuse, Inc. (hereinafter referred to as “Littelfuse”) for a declaratory judgment that a patent owned by Littelfuse is not being contributorily infringed 1 by Wells’ sale of certain brake switches. No question concerning the validity of the patent is raised on appeal. The sole issue on appeal is whether the manufacture and sale by Wells of replacement brake switches in the aftermarket constitutes permissible “repairs” of appellant’s…