FR2776394B1 - Dispositif d'identification d'objets optiquement invisibles - Google Patents

Dispositif d'identification d'objets optiquement invisibles

Info

Publication number
FR2776394B1
FR2776394B1 FR9803704A FR9803704A FR2776394B1 FR 2776394 B1 FR2776394 B1 FR 2776394B1 FR 9803704 A FR9803704 A FR 9803704A FR 9803704 A FR9803704 A FR 9803704A FR 2776394 B1 FR2776394 B1 FR 2776394B1
Authority
FR
France
Prior art keywords
optically invisible
invisible objects
identifying optically
identifying
objects
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 - Fee Related
Application number
FR9803704A
Other languages
English (en)
Other versions
FR2776394A1 (fr
Inventor
Duc Hao Bui
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.)
Plymouth Francaise SA
Original Assignee
Plymouth Francaise 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 Plymouth Francaise SA filed Critical Plymouth Francaise SA
Priority to FR9803704A priority Critical patent/FR2776394B1/fr
Publication of FR2776394A1 publication Critical patent/FR2776394A1/fr
Application granted granted Critical
Publication of FR2776394B1 publication Critical patent/FR2776394B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V15/00—Tags attached to, or associated with, an object, in order to enable detection of the object

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
FR9803704A 1998-03-20 1998-03-20 Dispositif d'identification d'objets optiquement invisibles Expired - Fee Related FR2776394B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9803704A FR2776394B1 (fr) 1998-03-20 1998-03-20 Dispositif d'identification d'objets optiquement invisibles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9803704A FR2776394B1 (fr) 1998-03-20 1998-03-20 Dispositif d'identification d'objets optiquement invisibles

Publications (2)

Publication Number Publication Date
FR2776394A1 FR2776394A1 (fr) 1999-09-24
FR2776394B1 true FR2776394B1 (fr) 2000-05-12

Family

ID=9524491

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9803704A Expired - Fee Related FR2776394B1 (fr) 1998-03-20 1998-03-20 Dispositif d'identification d'objets optiquement invisibles

Country Status (1)

Country Link
FR (1) FR2776394B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210310231A1 (en) * 2020-04-07 2021-10-07 Milwaukee Electric Tool Corporation Cable counter for a sewer cleaning machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8915853D0 (en) * 1989-07-11 1989-08-31 Du Pont Uk Identification of hidden pipes etc
US5057844A (en) * 1990-03-19 1991-10-15 Rothstein Mark B Insulated underground antenna and method for utilizing same
FR2667953A1 (fr) * 1990-10-15 1992-04-17 Plymouth Francaise Sa Dispositif detectable pour l'identification d'objets optiquement invisibles.
WO1993021544A1 (fr) * 1992-04-10 1993-10-28 Willy Palle Pedersen Systeme de reperage a reperes du type electromagnetique, et repere et detecteur associes a ce systeme
DE19601651A1 (de) * 1996-01-18 1997-07-24 Sander Karl Heinz Gmbh & Co Kg Kanalisationsanlage
DE29609798U1 (de) * 1996-06-03 1996-08-29 Kelmaplast G. Kellermann GmbH, 45549 Sprockhövel Ortbares Trassenband zum Auffinden von im Erdboden vergrabenen nichtmetallischen Leitungen, wie metallfreie Kabel, Gas- und Wasserrohrleitungen o.dgl.

Also Published As

Publication number Publication date
FR2776394A1 (fr) 1999-09-24

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20091130