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United States of America Patent
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Jun 5, 2018
Issued Date -
Nov 27, 2014
app pub date -
Dec 31, 2013
filing date -
May 23, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A sight includes a cylinder, a first lens, a first lens seat, and at least one first elastic member. The first lens is disposed in the cylinder. The first lens seat carrying the first lens is disposed in the cylinder. The first elastic member is disposed between an outer surface of the first lens seat and an inner periphery of the cylinder, wherein the first lens seat is tightly fitted with the cylinder and light enters the cylinder through the first lens.
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