CA291418A - Tiroir de perforatrice a roc - Google Patents

Tiroir de perforatrice a roc

Info

Publication number: CA291418A
Authority: CA; Canada
Prior art keywords: valve chest; rock drills; drills; rock; chest
Prior art date: 1929-07-16
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

CA291418A

Other languages

English (en)

Inventor

Lawrence Murphy Thomas

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.)

Ingersoll Rand Co

Original Assignee

Ingersoll Rand Co

Publication date

1929-07-16

1929-07-16 Application granted granted Critical

1929-07-16 Publication of CA291418A publication Critical patent/CA291418A/fr

Status Expired legal-status Critical Current

Links

239000011435 rock Substances 0.000 title 1

CA291418A Tiroir de perforatrice a roc Expired CA291418A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA291418T

Publications (1)

Publication Number	Publication Date
CA291418A true CA291418A (fr)	1929-07-16

Family

ID=35228230

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA291418A Expired CA291418A (fr)			Tiroir de perforatrice a roc

Country Status (1)

Country	Link
CA (1)	CA291418A (fr)

0
- CA CA291418A patent/CA291418A/fr not_active Expired

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