FR319805A - Air bubble level protractor with vernier and scale - Google Patents

Air bubble level protractor with vernier and scale

Info

Publication number
FR319805A
FR319805A FR319805DA FR319805A FR 319805 A FR319805 A FR 319805A FR 319805D A FR319805D A FR 319805DA FR 319805 A FR319805 A FR 319805A
Authority
FR
France
Prior art keywords
vernier
scale
air bubble
bubble level
protractor
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
Paget
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR319805A publication Critical patent/FR319805A/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
    • 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
FR319805D 1902-03-21 1902-03-21 Air bubble level protractor with vernier and scale Expired FR319805A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR319805T 1902-03-21

Publications (1)

Publication Number Publication Date
FR319805A true FR319805A (en) 1902-11-24

Family

ID=1370354

Family Applications (1)

Application Number Title Priority Date Filing Date
FR319805D Expired FR319805A (en) 1902-03-21 1902-03-21 Air bubble level protractor with vernier and scale

Country Status (1)

Country Link
FR (1) FR319805A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2660804A (en) * 1952-01-26 1953-12-01 Michael L Mundy Level indicating device for house trailers
US4604812A (en) * 1985-03-01 1986-08-12 Jahanbakhsh Arjomand Pitch-angle-checker (P-A-C)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2660804A (en) * 1952-01-26 1953-12-01 Michael L Mundy Level indicating device for house trailers
US4604812A (en) * 1985-03-01 1986-08-12 Jahanbakhsh Arjomand Pitch-angle-checker (P-A-C)

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