FR1156139A - Boussole - Google Patents

Boussole

Info

Publication number
FR1156139A
FR1156139A FR1156139DA FR1156139A FR 1156139 A FR1156139 A FR 1156139A FR 1156139D A FR1156139D A FR 1156139DA FR 1156139 A FR1156139 A FR 1156139A
Authority
FR
France
Prior art keywords
compass
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)
Inventor
Robert Annen
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 FR1156139A publication Critical patent/FR1156139A/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
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/02—Magnetic compasses
    • G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles
    • G01C17/06—Suspending magnetic elements
FR1156139D 1955-08-31 1956-08-27 Boussole Expired FR1156139A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1156139X 1955-08-31

Publications (1)

Publication Number Publication Date
FR1156139A true FR1156139A (fr) 1958-05-13

Family

ID=4560440

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1156139D Expired FR1156139A (fr) 1955-08-31 1956-08-27 Boussole

Country Status (1)

Country Link
FR (1) FR1156139A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114659510A (zh) * 2022-03-21 2022-06-24 贵州大学 一种适用于产状测量的便携式地质罗盘及使用方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114659510A (zh) * 2022-03-21 2022-06-24 贵州大学 一种适用于产状测量的便携式地质罗盘及使用方法
CN114659510B (zh) * 2022-03-21 2024-03-08 贵州大学 一种适用于产状测量的便携式地质罗盘及使用方法

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