Structure improvement of a neck collar for children swimming

Bibliographische Detailangaben

1. Verfasser:	LIN, KUEN-YI
Format:	Patent
Sprache:	eng
Schlagworte:	EQUIPMENT FOR DWELLING OR WORKING UNDER WATER LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS LIFE-SAVING IN WATER MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS PERFORMING OPERATIONS RELATED EQUIPMENT SHIPS OR OTHER WATERBORNE VESSELS TRANSPORTING
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