FR751909A - Water level protractor - Google Patents

Water level protractor

Info

Publication number
FR751909A
FR751909A FR751909DA FR751909A FR 751909 A FR751909 A FR 751909A FR 751909D A FR751909D A FR 751909DA FR 751909 A FR751909 A FR 751909A
Authority
FR
France
Prior art keywords
water level
protractor
level protractor
water
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
French (fr)
Inventor
Ludovic Abraham
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 FR751909A publication Critical patent/FR751909A/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
    • G01C9/12—Measuring inclination, e.g. by clinometers, by levels by using a single pendulum plumb lines G01C15/10

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR751909D 1933-01-03 1933-01-03 Water level protractor Expired FR751909A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR751909T 1933-01-03

Publications (1)

Publication Number Publication Date
FR751909A true FR751909A (en) 1933-09-12

Family

ID=9156707

Family Applications (1)

Application Number Title Priority Date Filing Date
FR751909D Expired FR751909A (en) 1933-01-03 1933-01-03 Water level protractor

Country Status (1)

Country Link
FR (1) FR751909A (en)

Similar Documents

Publication Publication Date Title
FR695311A (en) Water heater
FR720242A (en) Water ski
FR751909A (en) Water level protractor
FR727299A (en) water ejector
FR764603A (en) Water level indicator
FR722970A (en) Water level indicator
FR726367A (en) Water level
FR713562A (en) water elevator
FR720131A (en) Water level indicator
FR766673A (en) Condensation water trap
FR774325A (en) Portable water softeners improvements
FR762122A (en) Water heater
FR737627A (en) water saver
FR752834A (en) Improvements to water tanks
FR763215A (en) Water pipe
FR805115A (en) electrolysers for water
FR771455A (en) Condensation water trap
FR813430A (en) Water softener
FR789822A (en) Improvements in water electrolysis
FR726399A (en) Water lifting device
FR726341A (en) Improvements to reflective water level indicators
FR829951A (en) Improvements to water level indicators
FR775192A (en) Steam and water separator
FR762021A (en) Condensation water trap
FR729121A (en) Condensation water trap