CA7895A - Machine a forer le roc - Google Patents

Machine a forer le roc

Info

Publication number: CA7895A
Authority: CA; Canada
Prior art keywords: drilling machine; rock drilling; rock; machine; drilling
Prior art date: 1877-09-12
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

CA000007895A

Other languages

English (en)

Inventor

Franklin Keenan

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

1877-09-12

1877-09-12 Application granted granted Critical

1877-09-12 Publication of CA7895A publication Critical patent/CA7895A/fr

Status Expired legal-status Critical Current

Links

238000005553 drilling Methods 0.000 title 1
239000011435 rock Substances 0.000 title 1

CA000007895A Machine a forer le roc Expired CA7895A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA7895T

Publications (1)

Publication Number	Publication Date
CA7895A true CA7895A (fr)	1877-09-12

Family

ID=45124444

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000007895A Expired CA7895A (fr)			Machine a forer le roc

Country Status (1)

Country	Link
CA (1)	CA7895A (fr)

0
- CA CA000007895A patent/CA7895A/fr not_active Expired

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