Box 3
Container
Contains 31 Results:
E-7.0 – Swenson Evaporator Company – General Correspondence, 1947
File — Box: 3, Folder: 1
Dates:
1947
E-7.0 – Swenson Evaporator Company – General Correspondence, 1948-1950
File — Box: 3, Folder: 2
Dates:
1948-1950
E-7.0 – Swenson Evaporator Company – General Correspondence, 1951-1953
File — Box: 3, Folder: 3
Dates:
1951-1953
E-7.0 – Swenson Evaporator Company – General Correspondence, 1954-1956
File — Box: 3, Folder: 4
Dates:
1954-1956
E-7.0 – Swenson Evaporator Company – General Correspondence, 1957-1969
File — Box: 3, Folder: 5
Dates:
1957-1969
E-7.0 – Swenson Evaporator Company – Improvements in Rotary Filters – Patent Application, undated
File — Box: 3, Folder: 6
Dates:
undated
E-7.3 – Swenson Evaporator Company – Dowtherm-Heated Caustic High Concentrator Design, 1951-1959
File — Box: 3, Folder: 8
Dates:
1951-1959
E-7.3 – Swenson Evaporator Company – Heyden Chemical Company, 1939-1940
File — Box: 3, Folder: 9
Dates:
1939-1940