DE317051C - - Google Patents

Info

Publication number
DE317051C
DE317051C DENDAT317051D DE317051DA DE317051C DE 317051 C DE317051 C DE 317051C DE NDAT317051 D DENDAT317051 D DE NDAT317051D DE 317051D A DE317051D A DE 317051DA DE 317051 C DE317051 C DE 317051C
Authority
DE
Germany
Prior art keywords
air bubble
luminous
dragonfly
self
light
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.)
Active
Application number
DENDAT317051D
Other languages
German (de)
English (en)
Publication of DE317051C publication Critical patent/DE317051C/de
Active 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)
  • Catching Or Destruction (AREA)
DENDAT317051D Active DE317051C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE317051C true DE317051C (enrdf_load_stackoverflow)

Family

ID=569723

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT317051D Active DE317051C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE317051C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1127095B (de) * 1959-01-07 1962-04-05 Trilux Lenze Gmbh & Co Kg Selbstleuchtende Libelle
DE1265430B (de) * 1963-05-01 1968-04-04 Saunders Roe & Nuclear Entpr L Libelle mit Beleuchtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1127095B (de) * 1959-01-07 1962-04-05 Trilux Lenze Gmbh & Co Kg Selbstleuchtende Libelle
DE1265430B (de) * 1963-05-01 1968-04-04 Saunders Roe & Nuclear Entpr L Libelle mit Beleuchtung

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