FR2631439B1 - Porte-cible de controle de la mise a niveau d'un fond de tranchee ou similaire - Google Patents

Porte-cible de controle de la mise a niveau d'un fond de tranchee ou similaire

Info

Publication number
FR2631439B1
FR2631439B1 FR8806560A FR8806560A FR2631439B1 FR 2631439 B1 FR2631439 B1 FR 2631439B1 FR 8806560 A FR8806560 A FR 8806560A FR 8806560 A FR8806560 A FR 8806560A FR 2631439 B1 FR2631439 B1 FR 2631439B1
Authority
FR
France
Prior art keywords
target
trimmer
level control
similar level
control target
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 - Lifetime
Application number
FR8806560A
Other languages
English (en)
Other versions
FR2631439A1 (fr
Inventor
Louis Vuagnat
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.)
GV SA
Original Assignee
GV SA
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 GV SA filed Critical GV SA
Priority to FR8806560A priority Critical patent/FR2631439B1/fr
Publication of FR2631439A1 publication Critical patent/FR2631439A1/fr
Application granted granted Critical
Publication of FR2631439B1 publication Critical patent/FR2631439B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • G01C15/002—Active optical surveying means
    • G01C15/004—Reference lines, planes or sectors
    • G01C15/006—Detectors therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • G01C15/02—Means for marking measuring points
    • G01C15/06—Surveyors' staffs; Movable markers
FR8806560A 1988-05-10 1988-05-10 Porte-cible de controle de la mise a niveau d'un fond de tranchee ou similaire Expired - Lifetime FR2631439B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8806560A FR2631439B1 (fr) 1988-05-10 1988-05-10 Porte-cible de controle de la mise a niveau d'un fond de tranchee ou similaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8806560A FR2631439B1 (fr) 1988-05-10 1988-05-10 Porte-cible de controle de la mise a niveau d'un fond de tranchee ou similaire

Publications (2)

Publication Number Publication Date
FR2631439A1 FR2631439A1 (fr) 1989-11-17
FR2631439B1 true FR2631439B1 (fr) 1990-08-17

Family

ID=9366350

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8806560A Expired - Lifetime FR2631439B1 (fr) 1988-05-10 1988-05-10 Porte-cible de controle de la mise a niveau d'un fond de tranchee ou similaire

Country Status (1)

Country Link
FR (1) FR2631439B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105300210B (zh) * 2015-10-10 2018-05-08 上海外高桥造船有限公司 一种多功能测量仪

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3815250A (en) * 1969-03-05 1974-06-11 Laser Alignment Target system for laying sewer pipes
US4228588A (en) * 1978-11-17 1980-10-21 Horton Jr Lloyd E Grade checker

Also Published As

Publication number Publication date
FR2631439A1 (fr) 1989-11-17

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Legal Events

Date Code Title Description
ST Notification of lapse