CA327988A - Perforatrice de terre et de roc - Google Patents

Perforatrice de terre et de roc

Info

Publication number: CA327988A
Authority: CA; Canada
Prior art keywords: earth; drilling apparatus; rock drilling; rock; drilling
Prior art date: 1932-11-29
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

CA327988A

Other languages

English (en)

Inventor

Richard Macdonald William

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

1932-11-29

1932-11-29 Application granted granted Critical

1932-11-29 Publication of CA327988A publication Critical patent/CA327988A/fr

Status Expired legal-status Critical Current

Links

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

CA327988A Perforatrice de terre et de roc Expired CA327988A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA327988T

Publications (1)

Publication Number	Publication Date
CA327988A true CA327988A (fr)	1932-11-29

Family

ID=35290358

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA327988A Expired CA327988A (fr)			Perforatrice de terre et de roc

Country Status (1)

Country	Link
CA (1)	CA327988A (fr)

0
- CA CA327988A patent/CA327988A/fr not_active Expired

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