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Priority to JP2235090UpriorityCriticalpatent/JPH03112588U/ja
Publication of JPH03112588UpublicationCriticalpatent/JPH03112588U/ja
Quickly assembled air pump comprising a cylinder with a retaining hold adjacent to an opening for a position rod wherein a retaining portion of an upper cover is engaged with the retaining hole and a conical lateral face of a piston is selectively abutted against an extension portion of the upper cover