FR640719A - Improvements in spirit levels - Google Patents

Improvements in spirit levels

Info

Publication number
FR640719A
FR640719A FR640719DA FR640719A FR 640719 A FR640719 A FR 640719A FR 640719D A FR640719D A FR 640719DA FR 640719 A FR640719 A FR 640719A
Authority
FR
France
Prior art keywords
spirit levels
levels
spirit
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)
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.)
MARILLIER ET PARMENTIER
Original Assignee
MARILLIER ET PARMENTIER
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 MARILLIER ET PARMENTIER filed Critical MARILLIER ET PARMENTIER
Application granted granted Critical
Publication of FR640719A publication Critical patent/FR640719A/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
    • G01C9/26—Details
    • G01C9/28—Mountings

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR640719D 1927-09-09 1927-09-09 Improvements in spirit levels Expired FR640719A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR640719T 1927-09-09

Publications (1)

Publication Number Publication Date
FR640719A true FR640719A (en) 1928-07-20

Family

ID=8997647

Family Applications (1)

Application Number Title Priority Date Filing Date
FR640719D Expired FR640719A (en) 1927-09-09 1927-09-09 Improvements in spirit levels

Country Status (1)

Country Link
FR (1) FR640719A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1149539B (en) * 1954-09-29 1963-05-30 Otto Schoepfer Level built-in unit for a spirit level

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1149539B (en) * 1954-09-29 1963-05-30 Otto Schoepfer Level built-in unit for a spirit level

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