Optical sighting instrument

Details Optical sighting instrument Optical sighting instrument

1976-06-14

1978-04-04

Corbin, John K.

Optics: measuring and testing

Fiducial instruments

Artificial reference

33291, 33292, G01C 502

Patent

active

040824667

ABSTRACT:
The optical sighting instrument uses the image of a floating bubble in a spirit level as a self-compensating index mark to indicate a reference line of sight at a given angle to the earth's normal surface.

REFERENCES:
patent: 2731873 (1956-01-01), Churgin et al.

Affiliated with

Also associated with

Rating

Optical sighting instrument does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical sighting instrument, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical sighting instrument will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-721362