CA455132A - Outil de forage - Google Patents

Outil de forage

Info

Publication number: CA455132A
Authority: CA; Canada
Prior art keywords: drill bit; drill; bit
Prior art date: 1949-03-15
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

CA455132A

Other languages

English (en)

Inventor

Edward Bennett Williams, Jr.

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

1949-03-15

1949-03-15 Application granted granted Critical

1949-03-15 Publication of CA455132A publication Critical patent/CA455132A/fr

Status Expired legal-status Critical Current

Links

CA455132A Outil de forage Expired CA455132A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA455132T

Publications (1)

Publication Number	Publication Date
CA455132A true CA455132A (fr)	1949-03-15

Family

ID=35572871

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA455132A Expired CA455132A (fr)			Outil de forage

Country Status (1)

Country	Link
CA (1)	CA455132A (fr)

0
- CA CA455132A patent/CA455132A/fr not_active Expired

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