GB731489A - Improvements in or relating to surveying instruments - Google Patents

Improvements in or relating to surveying instruments

Info

Publication number
GB731489A
GB731489A GB15178/53A GB1517853A GB731489A GB 731489 A GB731489 A GB 731489A GB 15178/53 A GB15178/53 A GB 15178/53A GB 1517853 A GB1517853 A GB 1517853A GB 731489 A GB731489 A GB 731489A
Authority
GB
United Kingdom
Prior art keywords
relating
surveying instruments
surveying
instruments
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
GB15178/53A
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.)
Esdaile & Sons Pty Ltd E
Original Assignee
Esdaile & Sons Pty Ltd E
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 Esdaile & Sons Pty Ltd E filed Critical Esdaile & Sons Pty Ltd E
Publication of GB731489A publication Critical patent/GB731489A/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
    • G01C3/26—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with fixed angles and a base of variable length, at, near, or formed by the object
    • G01C3/28—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with fixed angles and a base of variable length, at, near, or formed by the object with provision for reduction of the distance into the horizontal plane
    • G01C3/30—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with fixed angles and a base of variable length, at, near, or formed by the object with provision for reduction of the distance into the horizontal plane with adaptation to the measurement of the height of an object, e.g. tacheometers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
GB15178/53A 1952-07-07 1953-06-01 Improvements in or relating to surveying instruments Expired GB731489A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU731489X 1952-07-07

Publications (1)

Publication Number Publication Date
GB731489A true GB731489A (en) 1955-06-08

Family

ID=3755584

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15178/53A Expired GB731489A (en) 1952-07-07 1953-06-01 Improvements in or relating to surveying instruments

Country Status (1)

Country Link
GB (1) GB731489A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1222690B (en) * 1959-03-17 1966-08-11 Meopta Praha Narodni Podnik Self-reducing rangefinder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1222690B (en) * 1959-03-17 1966-08-11 Meopta Praha Narodni Podnik Self-reducing rangefinder

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