The exact temperature of kilns used for firing ceramic colors during manufacture is registered on a series of pyrometers, permitting scientific control at the Electrochemicals Department.
DuPont Company 150th anniversary observance, July 18, 1952 at site of first powder mills on the Brandywine. Crawford H. Greenwalt, president, addressing company employees, du Pont family members and other guests.
DuPont Company 150th anniversary observance, July 18, 1952 at site of first powder mills on the Brandywine. Crawford H. Greenwalt, president, addressing company employees, du Pont family members and other guests.
During observances held at the site of the original powder mills on the Brandywine River near Wilmington, Delaware DuPont Company chairman Walter S. Carpenter, Jr. unveils memorial marker. At far right is Crawford H. Greenewalt, company president....
Memorial marker made from 7 1/2 ton granite millstone ordered from France in 1801, was dedicated at DuPont Company's 150th anniversary celebration, July 18 on banks of Brandywine Creek. Marker covered with multi-colored nylon fabric, symbolizing...
Two great-great grandsons of Eleuthere Irenee du Pont look at the marker dedicated July 18, the DuPont Company's 150th anniversary, on Brandywine Creek, near Wilmington, Delaware. The du Ponts, two of the youngest members of the family now in the...
The DuPont Band, numbering more than 60 company employees, plays for the entertainment of guests at DuPont's 150th Anniversary celebration July 18 on the banks of Brandywine Creek, near Wilmington, Delaware. Nearly 7,000 spectators, consisting...
