Implement for geographical studies to locate features on maps - comprises map with places etc. missing covered with clear pref. PVC film on which such features are complementarily marked

Educational device for determining the position of places, regions or courses (of rivers, railway lines etc.) on maps, town plans or the like, comprises such a map or plan on which the places, regions or courses are not marked. The map is covered with a transparent film e.g. PVC film, adapted to be...

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Bibliographische Detailangaben

1. Verfasser:	B., MIX,PETER
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ADVERTISING APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE CRYPTOGRAPHY DIAGRAMS DISPLAY EDUCATION EDUCATIONAL OR DEMONSTRATION APPLIANCES GLOBES PHYSICS PLANETARIA SEALS
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