CA328110A - Tete a expansion de forage - Google Patents

Tete a expansion de forage

Info

Publication number
CA328110A
CA328110A CA328110DA CA328110A CA 328110 A CA328110 A CA 328110A CA 328110D A CA328110D A CA 328110DA CA 328110 A CA328110 A CA 328110A
Authority
CA
Canada
Prior art keywords
boring head
expanding boring
expanding
head
boring
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
English (en)
Inventor
Severson Ole
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.)
Ok Tool Co
Original Assignee
Ok Tool Co
Publication date
Application granted granted Critical
Publication of CA328110A publication Critical patent/CA328110A/fr
Expired legal-status Critical Current

Links

CA328110D Tete a expansion de forage Expired CA328110A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA328110T

Publications (1)

Publication Number Publication Date
CA328110A true CA328110A (fr) 1932-11-29

Family

ID=35290480

Family Applications (1)

Application Number Title Priority Date Filing Date
CA328110D Expired CA328110A (fr) Tete a expansion de forage

Country Status (1)

Country Link
CA (1) CA328110A (fr)

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