CA404019A - Mandrin de perforatrice a roc - Google Patents

Mandrin de perforatrice a roc

Info

Publication number: CA404019A
Authority: CA; Canada
Prior art keywords: rock drill; drill chuck; chuck; rock; drill
Prior art date: 1942-04-14
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

CA404019A

Other languages

English (en)

Inventor

Ensley Barton Frederick

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

1942-04-14

1942-04-14 Application granted granted Critical

1942-04-14 Publication of CA404019A publication Critical patent/CA404019A/fr

Status Expired legal-status Critical Current

Links

239000011435 rock Substances 0.000 title 1

CA404019A Mandrin de perforatrice a roc Expired CA404019A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA404019T

Publications (1)

Publication Number	Publication Date
CA404019A true CA404019A (fr)	1942-04-14

Family

ID=35415317

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA404019A Expired CA404019A (fr)			Mandrin de perforatrice a roc

Country Status (1)

Country	Link
CA (1)	CA404019A (fr)

0
- CA CA404019A patent/CA404019A/fr not_active Expired

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