Customer lists of the first 100 DU spectrophotometers sold
- Undated
Rights
In CopyrightDownload all 5 images
PDFZIPof full-sized JPGsDownload selected image
Small JPG1200 x 1524px — 331 KBFull-sized JPG2708 x 3439px — 1.3 MBOriginal fileTIFF — 2708 x 3439px — 26.7 MBTwo lists are included: one identifies companies, the second includes instrument serial numbers and shipping dates. Both documents are copies, and (per a note by Pat Ashton) the detailed list does not mention instruments number 218-289.
The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the company was still called National Technical Laboratories. Spurred by employee Howard Cary (who had previously been involved in pH meter development), NTL produced its first DU Spectrophotometer prototype in 1940. This first Model A contained a glass prism, while subsequent models used quartz crystal. The DU was initially developed under a U.S. government contract, but was ultimately used in many important scientific discoveries and developments of the 20th century, including penicillin and synthetic rubber research, petroleum refining, and the creation of explosives.
| Property | Value |
|---|---|
| Format | |
| Genre | |
| Extent |
|
| Language | |
| Subject | |
| Rights | In Copyright |
| Rights holder |
|
| Credit line |
|
Institutional location
| Department | |
|---|---|
| Collection | |
| Series arrangement |
|
| Physical container |
|
View collection guide View in library catalog
Related Items
Cite as
“Customer Lists of the First 100 DU Spectrophotometers Sold,” n.d. Beckman Historical Collection, Box 17, Folder 13. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/nv935332g.
This citation is automatically generated and may contain errors.
