CA87419A - Methode de creuser les points au moyen de congelation - Google Patents

Methode de creuser les points au moyen de congelation

Info

Publication number
CA87419A
CA87419A CA000087419A CA87419DA CA87419A CA 87419 A CA87419 A CA 87419A CA 000087419 A CA000087419 A CA 000087419A CA 87419D A CA87419D A CA 87419DA CA 87419 A CA87419 A CA 87419A
Authority
CA
Canada
Prior art keywords
freezing process
sinking shafts
sinking
shafts
freezing
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
CA000087419A
Other languages
English (en)
Inventor
Karl Schmmidt
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
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA87419A publication Critical patent/CA87419A/fr
Expired legal-status Critical Current

Links

CA000087419A 1904-01-27 1904-01-27 Methode de creuser les points au moyen de congelation Expired CA87419A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA87419T 1904-01-27

Publications (1)

Publication Number Publication Date
CA87419A true CA87419A (fr) 1904-05-24

Family

ID=45203954

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000087419A Expired CA87419A (fr) 1904-01-27 1904-01-27 Methode de creuser les points au moyen de congelation

Country Status (1)

Country Link
CA (1) CA87419A (fr)

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