Box 6
Container
Contains 41 Results:
U.S. Patent Application #196,545 – Process for the Purification of Drinking Water, 1936-1939, undated
File — Box: 6, Folder: 32
Dates:
1936-1939, undated
U.S. Patent Application #209,634 – Tobacco Smoke Filtering, 1938-1939
File — Box: 6, Folder: 33
Dates:
1938-1939
U.S. Patent Application #219,484 – Manufacture of Wetting and Emulsifying Agents – File 1, 1938-1941
File — Box: 6, Folder: 34
Dates:
1938-1941
U.S. Patent Application #219,484 – Manufacture of Wetting and Emulsifying Agents – File 2, 1939-1942, undated
File — Box: 6, Folder: 35-36
Dates:
1939-1942, undated
U.S. Patent Application #219,485 – Use of Wetting and Emulsifying Agents, 1938-1941, undated
File — Box: 6, Folder: 37
Dates:
1938-1941, undated
U.S. Patent Application #227,593 – Treatment of Cellulose Fabrics, 1938-1941, undated
File — Box: 6, Folder: 38-39
Dates:
1938-1941, undated
U.S. Patent Application #280,673 – Prevention of Explosion Risks – File 1, 1939-1941
File — Box: 6, Folder: 40
Dates:
1939-1941
U.S. Patent Application #280,673 – Prevention of Explosion Risks – File 2, 1939-1942
File — Box: 6, Folder: 41
Dates:
1939-1942
U.S. Patent Application #280,674 – Smoke Abatement – File 1, 1939-1941
File — Box: 6, Folder: 42
Dates:
1939-1941
U.S. Patent Application #280,674 – Smoke Abatement – File 2, 1939-1941, undated
File — Box: 6, Folder: 43
Dates:
1939-1941, undated