Wide viewfield underwater mask
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United States of America Patent
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-
Sep 13, 1994
Grant Date -
N/A
app pub date -
Jul 9, 1993
filing date -
Jul 9, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This invention relates to an underwater mask which has on the front two plates made of a transparent material for front vision, and two further transparent plates placed beneath the former and forming an angle greater than 90.degree. and less than 180.degree. therewith. The second pair of clear plates afford peripheral vision down the diver's pectoral region.
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Cited Art Landscape
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