Box 4
Container
Contains 19 Results:
U.S. Patent #1,679,850 – Process for the Manufacture of Threads, Films, and the Like from Cellulose Derivatives, 1925-1928
File — Box: 4, Folder: 5
Dates:
1925-1928
U.S. Patent #1,707,595 – Apparatus for Processing Artificial Silk, 1925-1934, undated
File — Box: 4, Folder: 6
Dates:
1925-1934, undated
U.S. Patent #1,796,501 – Filling Body for Reaction and Washing Towers (Berl Saddle Tower Packings), 1930-1945, undated
File — Box: 4, Folder: 7
Dates:
1930-1945, undated
U.S. Patent #1,812,316 – Method for Making Active Charcoal, 1927-1945
File — Box: 4, Folder: 8
Dates:
1927-1945
U.S. Patent #1,851,888 – Process for the Manufacture of Activated Carbon, 1927-1944, undated
File — Box: 4, Folder: 9
Dates:
1927-1944, undated
U.S. Patent #2,040,971 – Cellulose Ester Composition – Auden & Staudinger (Based on British Patent #34,636), 1934-1936, undated
File — Box: 4, Folder: 10
Dates:
1934-1936, undated
U.S. Patent #2,076,360 – Air Conditioning Apparatus, 1935-1940, undated
File — Box: 4, Folder: 11
Dates:
1935-1940, undated
U.S. Patent #2,091,130 – Hydrogen Peroxide, 1935-1937, undated
File — Box: 4, Folder: 12
Dates:
1935-1937, undated
U.S. Patent #2,110,642 – Manufacture of Cellulose Esters, 1936-1938, undated
File — Box: 4, Folder: 13
Dates:
1936-1938, undated