FR1131899A - Niveau à voyant éclairé - Google Patents

Niveau à voyant éclairé

Info

Publication number
FR1131899A
FR1131899A FR1131899DA FR1131899A FR 1131899 A FR1131899 A FR 1131899A FR 1131899D A FR1131899D A FR 1131899DA FR 1131899 A FR1131899 A FR 1131899A
Authority
FR
France
Prior art keywords
level
lighted indicator
lighted
indicator
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
Charles-Joseph Hugon
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 filed Critical
Application granted granted Critical
Publication of FR1131899A publication Critical patent/FR1131899A/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
    • 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
    • G01C9/26—Details
    • G01C9/32—Means for facilitating the observation of the position of the bubble, e.g. illuminating means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR1131899D 1955-03-28 1955-03-28 Niveau à voyant éclairé Expired FR1131899A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1131899T 1955-03-28

Publications (1)

Publication Number Publication Date
FR1131899A true FR1131899A (fr) 1957-02-28

Family

ID=9638099

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1131899D Expired FR1131899A (fr) 1955-03-28 1955-03-28 Niveau à voyant éclairé

Country Status (1)

Country Link
FR (1) FR1131899A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3003054A (en) * 1960-09-09 1961-10-03 Richard T Hubbard Illuminated spirit level
US3110115A (en) * 1961-09-05 1963-11-12 Richard T Hubbard Spirit level

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3003054A (en) * 1960-09-09 1961-10-03 Richard T Hubbard Illuminated spirit level
US3110115A (en) * 1961-09-05 1963-11-12 Richard T Hubbard Spirit level

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