DK130371B - Parallel ruler and navigation triangle. - Google Patents

Parallel ruler and navigation triangle.

Info

Publication number
DK130371B
DK130371B DK123970A DK123970A DK130371B DK 130371 B DK130371 B DK 130371B DK 123970 A DK123970 A DK 123970A DK 123970 A DK123970 A DK 123970A DK 130371 B DK130371 B DK 130371B
Authority
DK
Denmark
Prior art keywords
parallel ruler
navigation
triangle
navigation triangle
ruler
Prior art date
Application number
DK123970A
Other languages
Danish (da)
Other versions
DK130371C (en
Inventor
F D Barros
Original Assignee
F D Barros
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 F D Barros filed Critical F D Barros
Publication of DK130371B publication Critical patent/DK130371B/en
Application granted granted Critical
Publication of DK130371C publication Critical patent/DK130371C/da

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/20—Instruments for performing navigational calculations

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Instructional Devices (AREA)
  • Drawing Aids And Blackboards (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)
DK123970A 1969-03-13 1970-03-12 Parallel ruler and navigation triangle. DK130371B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PT5134169 1969-03-13

Publications (2)

Publication Number Publication Date
DK130371B true DK130371B (en) 1975-02-10
DK130371C DK130371C (en) 1975-07-07

Family

ID=20081689

Family Applications (1)

Application Number Title Priority Date Filing Date
DK123970A DK130371B (en) 1969-03-13 1970-03-12 Parallel ruler and navigation triangle.

Country Status (7)

Country Link
BE (1) BE747359A (en)
CH (1) CH516788A (en)
DE (1) DE2011821B2 (en)
DK (1) DK130371B (en)
FR (1) FR2038929A5 (en)
GB (1) GB1296886A (en)
NL (1) NL7003581A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8613750D0 (en) * 1986-06-06 1986-07-09 Macleod I Depth gauge
GB2191593B (en) * 1986-06-13 1990-04-25 Liu Bao Shen Angle measuring instrument
GB8615824D0 (en) * 1986-06-27 1986-08-06 Smiths Industries Plc Parallel protractor rules
GB9001887D0 (en) * 1990-01-26 1990-03-28 Forshaw Whittaker Christopher Ophthalmic measurer and templates
GB2291717A (en) * 1994-07-15 1996-01-31 John Mary Patrick Broderick Device for measuring and indicating angles
CN105620126B (en) * 2016-02-22 2017-10-31 桂林航天工业学院 A kind of quick and precisely multipurpose plotter
CN113561683B (en) * 2021-08-27 2022-02-22 中国人民解放军军事科学院国防科技创新研究院 Navigation plotting device and using method

Also Published As

Publication number Publication date
CH516788A (en) 1971-12-15
DE2011821A1 (en) 1970-10-08
DE2011821C3 (en) 1974-05-30
NL7003581A (en) 1970-09-15
DE2011821B2 (en) 1973-10-31
DK130371C (en) 1975-07-07
GB1296886A (en) 1972-11-22
FR2038929A5 (en) 1971-01-08
BE747359A (en) 1970-08-17

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