CA383664A - Perforatrice a roc - Google Patents

Perforatrice a roc

Info

Publication number: CA383664A
Authority: CA; Canada
Prior art keywords: rock drill; drill; rock
Prior art date: 1939-08-29
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

CA383664A

Other languages

Inventor

H. Lind John

Original Assignee

American Smelting and Refining Co

Publication date

1939-08-29

1939-08-29 Application granted granted Critical

1939-08-29 Publication of CA383664A publication Critical patent/CA383664A/fr

Status Expired legal-status Critical Current

CA383664A Perforatrice a roc Expired CA383664A (fr)

Application Number	Priority Date	Filing Date	Title
CA383664T

Publication Number	Publication Date
CA383664A true CA383664A (fr)	1939-08-29

Application Number	Title	Priority Date	Filing Date
CA383664A Expired CA383664A (fr)			Perforatrice a roc

Country	Link
CA (1)	CA383664A (fr)

Publication	Publication Date	Title
CA383664A (fr)	1939-08-29	Perforatrice a roc
CA383182A (fr)	1939-08-08	Perforatrice a roc
CA383663A (fr)	1939-08-29	Perforatrice a roc
CA381062A (fr)	1939-05-02	Mecanisme a perforer le roc
CA383560A (fr)	1939-08-22	Fleuret de perforatrice
CA384140A (fr)	1939-09-19	Fleuret de perforatrice a roc
CA384139A (fr)	1939-09-19	Fleuret de perforatrice a roc
CA380900A (fr)	1939-04-25	Serre de perforatrice a roc
CA376443A (fr)	1938-09-13	Perforatrice a roc
CA372125A (fr)	1938-03-01	Perforatrice a roc
CA373762A (fr)	1938-05-17	Perforatrice a roc
CA374640A (fr)	1938-06-21	Perforatrice a roc
CA377003A (fr)	1938-10-11	Perforatrice a roc
CA382105A (fr)	1939-06-20	Perforatrice de roc a fleuret amovible
CA383005A (fr)	1939-08-01	Perforatrice a diamants
CA380769A (fr)	1939-04-18	Fleuret amovible
CA383458A (fr)	1939-08-15	Boue a forage
CA383459A (fr)	1939-08-15	Boue a forage
CA387316A (fr)	1940-03-05	Perforatrice a roc
CA388216A (fr)	1940-04-23	Perforatrice a roc
CA388540A (fr)	1940-05-07	Perforatrice a roc
CA393457A (fr)	1940-12-31	Perforatrice a roc
CA366505A (fr)	1937-06-01	Perforatrice a roc
CA368532A (fr)	1937-09-07	Perforatrice a roc
CA379250A (fr)	1939-01-31	Semoir en ligne