FR380027A - double reflection graphometer - Google Patents

double reflection graphometer

Info

Publication number
FR380027A
FR380027A FR380027DA FR380027A FR 380027 A FR380027 A FR 380027A FR 380027D A FR380027D A FR 380027DA FR 380027 A FR380027 A FR 380027A
Authority
FR
France
Prior art keywords
graphometer
double reflection
reflection
double
reflection graphometer
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
Aime-Gustave Cuiret
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.)
AIME GUSTAVE CUIRET
Original Assignee
AIME GUSTAVE CUIRET
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 AIME GUSTAVE CUIRET filed Critical AIME GUSTAVE CUIRET
Application granted granted Critical
Publication of FR380027A publication Critical patent/FR380027A/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
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/02—Magnetic compasses
    • G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles
    • G01C17/10—Comparing observed direction with north indication
    • G01C17/12—Comparing observed direction with north indication by sighting means, e.g. for surveyors' compasses

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR380027D 1907-06-14 1907-06-14 double reflection graphometer Expired FR380027A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR380027T 1907-06-14

Publications (1)

Publication Number Publication Date
FR380027A true FR380027A (en) 1907-11-27

Family

ID=1426271

Family Applications (1)

Application Number Title Priority Date Filing Date
FR380027D Expired FR380027A (en) 1907-06-14 1907-06-14 double reflection graphometer

Country Status (1)

Country Link
FR (1) FR380027A (en)

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