File Photographic camera In: Blanchard Family Papers, circa 1835-circa 2000 » Nathan A. Cobb » Inventions and Patents
File Shutters, chassis, plate holder, etc., 1899-1900 Box 9 In: Blanchard Family Papers, circa 1835-circa 2000 » Nathan A. Cobb » Inventions and Patents » Photographic camera
File Correspondence related to legal cases and royalties, 1901-1913 Box 9 In: Blanchard Family Papers, circa 1835-circa 2000 » Nathan A. Cobb » Inventions and Patents » Photographic camera
File Rifle sights, undated Box 9 In: Blanchard Family Papers, circa 1835-circa 2000 » Nathan A. Cobb » Inventions and Patents
File Seed drill, 1899-1900 Box 9 In: Blanchard Family Papers, circa 1835-circa 2000 » Nathan A. Cobb » Inventions and Patents
File Textile fibers (method and apparatus for determining mean or average length), 1916-1918 Box 9 In: Blanchard Family Papers, circa 1835-circa 2000 » Nathan A. Cobb » Inventions and Patents
File Other, 1917-1918 Box 9 In: Blanchard Family Papers, circa 1835-circa 2000 » Nathan A. Cobb » Inventions and Patents