Object Record

Keuffler & Esser Log Log Duplex Decitrig Slide Rule 4081-3

Catalog Number	13.0017.001
Title	Keuffler & Esser Log Log Duplex Decitrig Slide Rule 4081-3
Collection	Michael Potter Collection
History	Dr. Michael Potter won the Lasker Award for medical research for his work on understanding tumors and the immune system. He worked for over 50 years at the National Cancer Institute (NCI). He studied how tumors in plasma cells, called plasmacytomas, are produced by injecting mineral oil into mice and seeing what antibodies were stimulated. He developed many strains of mouse plasma cells using wild mice. He widely shared these strains and one of them was used by Cesar Milstein and Georges Kohler to develop monoclonal antibodies--antibodies of a single type that can be replicated in unlimited quantities for research. They won the Nobel Prize.
Description	.01 K&E Log Log Duplex Decitrig Slide Rule 4081-3 .02 Case .01 Slide rule. Indicator frame is broken. Marked with Keuffler & Esser logo, maker information, and rules: LL02, LL03, DF, B, T, SRT, S, D, LL3, LL2, LL01, L, K, A, CF, CIF, CI, C, D, DI, and LLI. Some rust. .02 Green leather case wtih slide closure. On the slide are metal brackets stamped "Pat. 2,000,337." Sightly tapered for snug fit.
Date	C. 1955
Organizations	NIH; NCI (National Cancer Institute) NIH; NCI, Laboratory of Genetics
Buildings	Building 35 (John Edward Porter Neuroscience Research Center)
NIH Property #	none
Old NIH Property #	none
Serial #	958
People	Potter, Michael