Patent
1984-06-11
1987-06-02
Corbin, John K.
G02B 2702
Patent
active
046698221
ABSTRACT:
An apparatus and method permitting non-intrusive observation from an exterior environment of an indicator encased within an interior environment. A lensholder retaining a magnifying lens is secured to the indicator face of a fluid meter while a meter cover thereover has a sighting plug in alignment therewith. A sighting duct engages the sighting plug at a distal portion thereof allowing a user to remotely view the indicator at a proximal portion of the sighting duct.
REFERENCES:
patent: 2919622 (1960-01-01), Hensoldt
patent: 4215916 (1980-08-01), Bell et al.
patent: 4515437 (1985-05-01), Story
Corbin John K.
Lemmo Vincent J.
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