Planar four-rod combined teaching aid for magic shadow play

The utility model discloses a planar four-rod combined teaching aid for magic shadow play, comprising a first bottom pate and a second bottom plate which can be spliced. A crank and slider mechanism and a rocking handle mechanism are arranged on the first bottom plate. A crank and rocker mechanism,...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LIN YAJING, LONG JIANGXING, XI XIANG, ZHANG WEI, YANG JIMING
Format:	Patent
Sprache:	chi ; eng
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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