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FR447475A - Télémètre - Google Patents

Télémètre

Info

Publication number
FR447475A
FR447475A FR447475DA FR447475A FR 447475 A FR447475 A FR 447475A FR 447475D A FR447475D A FR 447475DA FR 447475 A FR447475 A FR 447475A
Authority
FR
France
Prior art keywords
rangefinder
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
English (en)
Inventor
James Murray Washburn
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 FR447475A publication Critical patent/FR447475A/fr
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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR447475D 1911-08-23 1912-08-22 Télémètre Expired FR447475A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US447475XA 1911-08-23 1911-08-23

Publications (1)

Publication Number Publication Date
FR447475A true FR447475A (fr) 1913-01-06

Family

ID=1488169

Family Applications (1)

Application Number Title Priority Date Filing Date
FR447475D Expired FR447475A (fr) 1911-08-23 1912-08-22 Télémètre

Country Status (1)

Country Link
FR (1) FR447475A (fr)

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