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Alan James Evans Patents
Inventor:
Evans; Alan James
Address:
Gosnells, AU
No. of patents:
1
Patents:




Patent Number Title Of Patent Date Issued
5893362 Snorkelling device April 13, 1999
A snorkelling device for supplying air to a person by unassisted lung function to a depth of approximately one meter. The device may be used upon or below the surface of the water. It comprises an air intake incorporating a float valve (14) for closing the air intake when it becomes


 
 
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