Visible file
A visible file, sometimes just called a kardex, after a prominent purveyor, is a filing system for overlapping cards fixed in shallow drawers.
The best-known version was commercialized by Kardex.
The Library Bureau company commercialized the very similar L. B. Speedac.[1]
Another brand was the Index Visible System.
Notes[edit]
- ^ The Magazine of Business 47:294 (1925)