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Priority to JP1980114705UpriorityCriticalpatent/JPS6243529Y2/ja
Publication of JPS5740411UpublicationCriticalpatent/JPS5740411U/ja
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Publication of JPS6243529Y2publicationCriticalpatent/JPS6243529Y2/ja
Endoscopic device insertable into a body cavity and movable in a predetermined direction, and method of moving the endoscopic device in the body cavity