FR353030A - Safety system for extraction wells - Google Patents

Safety system for extraction wells

Info

Publication number
FR353030A
FR353030A FR353030DA FR353030A FR 353030 A FR353030 A FR 353030A FR 353030D A FR353030D A FR 353030DA FR 353030 A FR353030 A FR 353030A
Authority
FR
France
Prior art keywords
safety system
extraction wells
wells
extraction
safety
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)
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.)
Siemens Schuckertwerke AG
Original Assignee
Siemens Schuckertwerke AG
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 Siemens Schuckertwerke AG filed Critical Siemens Schuckertwerke AG
Application granted granted Critical
Publication of FR353030A publication Critical patent/FR353030A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B17/00—Hoistway equipment
    • B66B17/34—Safe lift clips; Keps
FR353030D 1905-04-05 1905-04-05 Safety system for extraction wells Expired FR353030A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR353030T 1905-04-05

Publications (1)

Publication Number Publication Date
FR353030A true FR353030A (en) 1905-08-31

Family

ID=1401222

Family Applications (1)

Application Number Title Priority Date Filing Date
FR353030D Expired FR353030A (en) 1905-04-05 1905-04-05 Safety system for extraction wells

Country Status (1)

Country Link
FR (1) FR353030A (en)

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