During at least 1875 to 1876, Gustaf Knorring made a New England pattern bandsaw. We have one report of a bandsaw frame with "G. KNORRING / PROVIDENCE R.I. / U.S.A." on a brass plaque. The advertisement below calls it the "What Cheer" saw.

Advertisement from an 1875 Providence City Directory

Information Sources

• Thanks to Tim Kuist for informing us of his bandsaw in an owwm.org forum post.
• Thanks to Jake Agius for uncovering an ad for Gustaf Knorring's bandsaw in an 1875 Providence City Directory. We have also seen a tiny image of a slightly different Knorring ad from an 1876 Providence City Directory.
• A patent search did not turn up any patents for a G. Knorring, or any patent to a Knorring from Rhode Island.
• A search of Google Books produced just one mention of a G. Knorring from Providence: Acts and Resolves Passed at the Sessions of the General Assembly of the State of Rhode Island for March 1873 lists "An act to incorporate friendly union lodge no. 1, of the Independent Order of Odd Fellows, in the city of Providence." lists fourteen people who collectively formed the lodge, including one Gustaf Knorring.
• Shot and Sheel: The Third Rhode Island Heavy Artillery Regiment, 1861-1865, published 1879 and available online through archive.org, mentions "Capt. Gustaf W. Knorring, a gallant Swedish officer, who joined us with his worth fellow-countrymen, as a First Lieutenant, Feb. 14, 1862, and was promoted to be a Captain Dec. 26, 1862, now resigned his place in our command to accept a captaincy in the Third Rhode Island Cavalry."
• A genealogy page, now defunct, for the Nohring family lists a "Carl Gustaf Wilhelm Von Knorring", who married Emilia Anna Parini on June 1 1864 in Providence.
• The book, Swedish Immigrants in Lincoln's Time by Nels Hokanson, 1942, and available online through archive.org, lists some Swedish officers who served for the Union side during the Civil War, including "Lieutent Colonel Carl Gustaf Von Knorring". "Von Knorring was born in Skövde, Sweden, in 1823. In 1857 we was an assistant in the telegraphic service. In 1859 he became a sergeant in the Göta Artillery Regiment and a year later, on May 15, was promoted to second lieutenant. In April, 1861, he enlisted in Company E, Third Rhode Island Artillery. On December 26, 1862, he was promoted to captain, and in January, 1863, he commanded a battery. He finally was promoted to lieutenant colonel on the staff of the United States Commander in Chief." A separate note says, "The Swedish government sent over officers Von Knorring, Norman, Ljungberg, ... to study the progress of naval construction, new artillery, and fortifications. Several of them enlisted in the United States Army after Piper had secured favorable posts for them."