FR2152546B1 - - Google Patents

Info

Publication number
FR2152546B1
FR2152546B1 FR7227600A FR7227600A FR2152546B1 FR 2152546 B1 FR2152546 B1 FR 2152546B1 FR 7227600 A FR7227600 A FR 7227600A FR 7227600 A FR7227600 A FR 7227600A FR 2152546 B1 FR2152546 B1 FR 2152546B1
Authority
FR
France
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
FR7227600A
Other languages
French (fr)
Other versions
FR2152546A1 (es
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.)
Poclain SA
Original Assignee
Poclain 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 Poclain SA filed Critical Poclain SA
Priority to FR7227600A priority Critical patent/FR2152546B1/fr
Publication of FR2152546A1 publication Critical patent/FR2152546A1/fr
Application granted granted Critical
Publication of FR2152546B1 publication Critical patent/FR2152546B1/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C47/00—Machines for obtaining or the removal of materials in open-pit mines
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/01—Methods or apparatus for enlarging or restoring the cross-section of tunnels, e.g. by restoring the floor to its original level
FR7227600A 1972-07-31 1972-07-31 Expired FR2152546B1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7227600A FR2152546B1 (es) 1972-07-31 1972-07-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7227600A FR2152546B1 (es) 1972-07-31 1972-07-31

Publications (2)

Publication Number Publication Date
FR2152546A1 FR2152546A1 (es) 1973-04-27
FR2152546B1 true FR2152546B1 (es) 1974-11-08

Family

ID=9102633

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7227600A Expired FR2152546B1 (es) 1972-07-31 1972-07-31

Country Status (1)

Country Link
FR (1) FR2152546B1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2426332C3 (de) * 1974-05-29 1981-06-04 Kabushiki Kaisha Komatsu Seisakusho, Tokyo Tunnelvortriebsmaschine
SE8100879L (sv) * 1981-02-09 1982-10-04 Axel Martin Forsberg Anordning vid bergsskrotning
FR2619157B1 (fr) * 1987-08-06 1991-11-22 Pradelle Bernard Dispositif purgeur, notamment pour le toit rocheux dans les mines, chantiers souterrains ou analogues

Also Published As

Publication number Publication date
FR2152546A1 (es) 1973-04-27

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Legal Events

Date Code Title Description
ST Notification of lapse