Rifle bore periscope

Firearms – Implements – Sight devices

Reexamination Certificate

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Details

C042S111000, C042S116000, C042S118000

Reexamination Certificate

active

07065917

ABSTRACT:
A periscope device specifically adapted to fit in the breach of a firearm. Using a housing equipped with at least a pair of mirrors in parallel relation to one another, a user can look down the barrel of his or her firearm. This is especially useful for checking the barrel for obstructions and for initially bore sighting the firearm when conducting gun sight alignment.

REFERENCES:
patent: 3074172 (1963-01-01), Cooper
patent: 3112567 (1963-12-01), Flanagan
patent: 3228108 (1966-01-01), Chaperon
patent: 4750269 (1988-06-01), Townsend et al.
patent: D357490 (1995-04-01), Browning
patent: 6604316 (2003-08-01), Custer

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