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G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
G09B27/00—Planetaria; Globes
G09B27/02—Tellurions; Orreries
Landscapes
Physics & Mathematics
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General Physics & Mathematics
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Engineering & Computer Science
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Astronomy & Astrophysics
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Business, Economics & Management
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Educational Administration
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Educational Technology
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Theoretical Computer Science
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Vessels And Coating Films For Discharge Lamps
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Vorrichtung zum Vorfuehren von Tapetenmusterblaettern, die in parallel zu einer Hauptwalze angeordneten Staeben eingespannt sind und nach hinten geblaettert werden
Korpuskularstrahlgerat, insbesondere Elektronenmikroskop, mit einer zum Abhe ben und Ausschwenken einzelner Teile der Mikroskopsaule dienenden Einrichtung