CA1092091A - Appareil d'alesage - Google Patents

Appareil d'alesage

Info

Publication number
CA1092091A
CA1092091A CA307,111A CA307111A CA1092091A CA 1092091 A CA1092091 A CA 1092091A CA 307111 A CA307111 A CA 307111A CA 1092091 A CA1092091 A CA 1092091A
Authority
CA
Canada
Prior art keywords
filter body
boring
tubular casing
cylindrical body
filter
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
CA307,111A
Other languages
English (en)
Inventor
Stig U. Lofs
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.)
LOFS VERKSTADS AB
Original Assignee
LOFS VERKSTADS AB
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 LOFS VERKSTADS AB filed Critical LOFS VERKSTADS AB
Priority to CA307,111A priority Critical patent/CA1092091A/fr
Application granted granted Critical
Publication of CA1092091A publication Critical patent/CA1092091A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
CA307,111A 1978-07-10 1978-07-10 Appareil d'alesage Expired CA1092091A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA307,111A CA1092091A (fr) 1978-07-10 1978-07-10 Appareil d'alesage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA307,111A CA1092091A (fr) 1978-07-10 1978-07-10 Appareil d'alesage

Publications (1)

Publication Number Publication Date
CA1092091A true CA1092091A (fr) 1980-12-23

Family

ID=4111874

Family Applications (1)

Application Number Title Priority Date Filing Date
CA307,111A Expired CA1092091A (fr) 1978-07-10 1978-07-10 Appareil d'alesage

Country Status (1)

Country Link
CA (1) CA1092091A (fr)

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Legal Events

Date Code Title Description
MKEX Expiry