Box 2
Container
Contains 94 Results:
Memo - Patent on Oxalic Acid (Photocopies), 1969
File — Box: 2, Folder: 26
Miscellaneous Sheets (Photocopies), 1952-1967, undated
File — Box: 2, Folder: 27
Dates:
1952-1967, undated
U.S. Patent #2,307,466 - Magnesium Oxide Hot Process for Silica Removal from Water, 1943
File — Box: 2, Folder: 28
U.S. Patent #2,843,138 - Liquid Proportioner (Photocopy), 1958
File — Box: 2, Folder: 29
U.S. Patent #3,216,931 - Method and Means for Cleaning Impurities from Water Treating Agents (Photocopy), 1965
File — Box: 2, Folder: 30
U.S. Patent #3,454,503 - Process for Regenerating Cation Exchange Resins (Photocopy), 1969
File — Box: 2, Folder: 31
U.S. Patent #3,468,796 - Chemical Feed Methods and Apparatus (Photocopies), 1967, 1969
File — Box: 2, Folder: 32
Dates:
1967, 1969
U.S. Patent #3,536,637 - Process for the Rejuvenation of Fouled Ion-Exchange Materials, 1970
File — Box: 2, Folder: 33
U.S. Patent #3,574,551 - Method for Determining Phosphate Content of Liquids Containing Polyphosphate Compounds, 1971
File — Box: 2, Folder: 34
U.S. Patent #3,575,853 - Waste Water Treatment, 1971
File — Box: 2, Folder: 35