FR12289E - Improvements in range finders - Google Patents

Improvements in range finders

Info

Publication number
FR12289E
FR12289E FR12289DA FR12289E FR 12289 E FR12289 E FR 12289E FR 12289D A FR12289D A FR 12289DA FR 12289 E FR12289 E FR 12289E
Authority
FR
France
Prior art keywords
range finders
finders
range
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Virgilio Colzi
Felice Bardelli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of FR12289E publication Critical patent/FR12289E/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C3/00—Measuring distances in line of sight; Optical rangefinders
    • G01C3/10—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument
    • G01C3/12—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument with monocular observation at a single point, e.g. coincidence type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR12289D 1909-10-16 1910-03-05 Improvements in range finders Expired FR12289E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR409103T 1909-10-16
FR12289T 1910-03-05

Publications (1)

Publication Number Publication Date
FR12289E true FR12289E (en) 1910-08-17

Family

ID=1354496

Family Applications (1)

Application Number Title Priority Date Filing Date
FR12289D Expired FR12289E (en) 1909-10-16 1910-03-05 Improvements in range finders

Country Status (1)

Country Link
FR (1) FR12289E (en)

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