CA376443A - Perforatrice a roc - Google Patents

Perforatrice a roc

Info

Publication number: CA376443A
Authority: CA; Canada
Prior art keywords: rock drill; drill; rock
Prior art date: 1938-09-13
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

CA376443A

Other languages

English (en)

Inventor

Morris Charles

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.)

NATIONAL ROCK DRILL Co

Original Assignee

NATIONAL ROCK DRILL Co

Publication date

1938-09-13

1938-09-13 Application granted granted Critical

1938-09-13 Publication of CA376443A publication Critical patent/CA376443A/fr

Status Expired legal-status Critical Current

Links

239000011435 rock Substances 0.000 title 1

CA376443A Perforatrice a roc Expired CA376443A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA376443T

Publications (1)

Publication Number	Publication Date
CA376443A true CA376443A (fr)	1938-09-13

Family

ID=35380767

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA376443A Expired CA376443A (fr)			Perforatrice a roc

Country Status (1)

Country	Link
CA (1)	CA376443A (fr)

0
- CA CA376443A patent/CA376443A/fr not_active Expired

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