CA21176A - Method of, and apparatus for sinking shafts, etc. - Google Patents

Method of, and apparatus for sinking shafts, etc.

Info

Publication number
CA21176A
CA21176A CA000021176A CA21176DA CA21176A CA 21176 A CA21176 A CA 21176A CA 000021176 A CA000021176 A CA 000021176A CA 21176D A CA21176D A CA 21176DA CA 21176 A CA21176 A CA 21176A
Authority
CA
Canada
Prior art keywords
sinking shafts
sinking
shafts
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
CA000021176A
Other languages
French (fr)
Inventor
Friedrich H. Poetsch
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA21176A publication Critical patent/CA21176A/en
Expired legal-status Critical Current

Links

CA000021176A Method of, and apparatus for sinking shafts, etc. Expired CA21176A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA21176T

Publications (1)

Publication Number Publication Date
CA21176A true CA21176A (en) 1885-02-27

Family

ID=45137719

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000021176A Expired CA21176A (en) Method of, and apparatus for sinking shafts, etc.

Country Status (1)

Country Link
CA (1) CA21176A (en)

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