FR862724A - Improvements made to hydraulic devices for the extraction by hydro-suction force of sands and gold alluviums located deep in rivers and marshes - Google Patents

Improvements made to hydraulic devices for the extraction by hydro-suction force of sands and gold alluviums located deep in rivers and marshes

Info

Publication number
FR862724A
FR862724A FR862724DA FR862724A FR 862724 A FR862724 A FR 862724A FR 862724D A FR862724D A FR 862724DA FR 862724 A FR862724 A FR 862724A
Authority
FR
France
Prior art keywords
alluviums
marshes
sands
rivers
hydro
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
Louis Auguste Neviere
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 FR862724A publication Critical patent/FR862724A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C50/00—Obtaining minerals from underwater, not otherwise provided for
FR862724D 1939-12-09 1939-12-09 Improvements made to hydraulic devices for the extraction by hydro-suction force of sands and gold alluviums located deep in rivers and marshes Expired FR862724A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR862724T 1939-12-09

Publications (1)

Publication Number Publication Date
FR862724A true FR862724A (en) 1941-03-13

Family

ID=9342954

Family Applications (1)

Application Number Title Priority Date Filing Date
FR862724D Expired FR862724A (en) 1939-12-09 1939-12-09 Improvements made to hydraulic devices for the extraction by hydro-suction force of sands and gold alluviums located deep in rivers and marshes

Country Status (1)

Country Link
FR (1) FR862724A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453949A1 (en) * 1978-09-22 1980-11-07 Orenstein & Koppel Ag SLUDGE CONVEYOR DEVICE, ESPECIALLY SLUDGE CONTAINING ORES FROM LARGE DEPTHS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453949A1 (en) * 1978-09-22 1980-11-07 Orenstein & Koppel Ag SLUDGE CONVEYOR DEVICE, ESPECIALLY SLUDGE CONTAINING ORES FROM LARGE DEPTHS

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