FR382972A - Bi-spherical mirror level - Google Patents

Bi-spherical mirror level

Info

Publication number
FR382972A
FR382972A FR382972DA FR382972A FR 382972 A FR382972 A FR 382972A FR 382972D A FR382972D A FR 382972DA FR 382972 A FR382972 A FR 382972A
Authority
FR
France
Prior art keywords
spherical mirror
mirror level
level
spherical
mirror
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
Gaston-Adolphe-Marie Duquenoy
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.)
GASTON ADOLPHE MARIE DUQUENOY
Original Assignee
GASTON ADOLPHE MARIE DUQUENOY
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 GASTON ADOLPHE MARIE DUQUENOY filed Critical GASTON ADOLPHE MARIE DUQUENOY
Application granted granted Critical
Publication of FR382972A publication Critical patent/FR382972A/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
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
    • G01C9/24—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble
    • G01C9/36—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble of the spherical type, i.e. for indicating the level in all directions

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR382972D 1907-10-16 1907-10-16 Bi-spherical mirror level Expired FR382972A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR382972T 1907-10-16

Publications (1)

Publication Number Publication Date
FR382972A true FR382972A (en) 1908-02-21

Family

ID=1429009

Family Applications (1)

Application Number Title Priority Date Filing Date
FR382972D Expired FR382972A (en) 1907-10-16 1907-10-16 Bi-spherical mirror level

Country Status (1)

Country Link
FR (1) FR382972A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2564580A1 (en) * 1984-05-16 1985-11-22 Dousset Robert Four-quadrant spirit (water) level

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2564580A1 (en) * 1984-05-16 1985-11-22 Dousset Robert Four-quadrant spirit (water) level

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