Henry Billings Brown,
Risdon Iron Locomotive Works v…
“ Does it disclose a patentable invention? That the patent is for a process in manufacture, and not for the mechanism employed, nor for the finished product of such manufacture, is undeniable, and is so expressed upon the face of the specification.The four claims of the patent make no reference to the mechanism exhibited in the drawings, and described in the specification. All claim an improvement in the art of manufacturing, and set forth in more or less detail the various steps in that process. ”
