FI30716A - Jääpora - Google Patents

Jääpora

Info

Publication number
FI30716A
FI30716A FI30716DA FI30716A FI 30716 A FI30716 A FI 30716A FI 30716D A FI30716D A FI 30716DA FI 30716 A FI30716 A FI 30716A
Authority
FI
Finland
Prior art keywords
ice drill
drill
ice
Prior art date
Application number
Other languages
English (en)
Inventor
Ruotsalainen Vilho
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
Publication of FI30716A publication Critical patent/FI30716A/fi

Links

FI30716D 1956-05-09 1956-05-09 Jääpora FI30716A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI30716T 1956-05-09

Publications (1)

Publication Number Publication Date
FI30716A true FI30716A (fi) 1959-11-10

Family

ID=36894932

Family Applications (1)

Application Number Title Priority Date Filing Date
FI30716D FI30716A (fi) 1956-05-09 1956-05-09 Jääpora

Country Status (1)

Country Link
FI (1) FI30716A (fi)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5042600A (en) * 1990-03-23 1991-08-27 Conoco Inc. Drill pipe with helical ridge for drilling highly angulated wells

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5042600A (en) * 1990-03-23 1991-08-27 Conoco Inc. Drill pipe with helical ridge for drilling highly angulated wells

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