FR672010A - Niveau focal - Google Patents

Niveau focal

Info

Publication number
FR672010A
FR672010A FR672010DA FR672010A FR 672010 A FR672010 A FR 672010A FR 672010D A FR672010D A FR 672010DA FR 672010 A FR672010 A FR 672010A
Authority
FR
France
Prior art keywords
focal level
focal
level
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)
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.)
Optische Anstalt CP Goerz AG
Original Assignee
Optische Anstalt CP Goerz AG
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 Optische Anstalt CP Goerz AG filed Critical Optische Anstalt CP Goerz AG
Application granted granted Critical
Publication of FR672010A publication Critical patent/FR672010A/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)
FR672010D 1928-04-14 1929-03-25 Niveau focal Expired FR672010A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE672010X 1928-04-14

Publications (1)

Publication Number Publication Date
FR672010A true FR672010A (fr) 1929-12-21

Family

ID=6590646

Family Applications (1)

Application Number Title Priority Date Filing Date
FR672010D Expired FR672010A (fr) 1928-04-14 1929-03-25 Niveau focal

Country Status (1)

Country Link
FR (1) FR672010A (fr)

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