Box 56
Container
Contains 18 Results:
Patents Owned or Under License by Swenson Evaporator Company, 1943
File — Box: 56, Folder: 1-2
Dates:
1943
Resources Conservation Company – U.S. Patent #4,018,656 (Assigned to Bechtel International Corporation) – Legal Issues, 1986, undated
File — Box: 56, Folder: 3-4
Dates:
1986, undated
Swenson Evaporator Company – Patent Searches, 1951, 1953, undated
File — Box: 56, Folder: 5-6
Dates:
1951, 1953, undated
U.S. and Foreign Patent Applications – Apparatus and Method for Forced Circulation Evaporation, 1981-1985
File — Box: 56, Folder: 7
Dates:
1981-1985
U.S. Patent #1,996,988 – Method and Means for Concentrating Solutions, 1935
File — Box: 56, Folder: 8
Dates:
1935
U.S. Patent #2,767,972 – Manufacture of Plaster of Paris, undated
File — Box: 56, Folder: 9
Dates:
undated
U.S. Patent #3,356,125 – Feeding and Liquid By-Passing Method for Falling Film Multiple Effect Evaporators, undated
File — Box: 56, Folder: 11
Dates:
undated
U.S. Patent #3,494,836 – Multistage Falling Film Flash Evaporator for Producing Fresh Water, 1970
File — Box: 56, Folder: 12
Dates:
1970
U.S. Patent #3,968,002 – Feed Heating Method for Multiple Effect Evaporators – Correspondence, 1976
File — Box: 56, Folder: 13
Dates:
1976