Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
G09B23/36—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for zoology
Klemmvorrichtung fuer ungelochte, Schreibzwecken dienende Blaetterstapel, gebildet aus einer Unterlage mit federnder Klemmbacke und einem zum Anheben und Sichern der Klemmbacke in Offenstellung dienenden Glied