CA473892A - Machines pour l'exploitation des mines de charbon - Google Patents

Machines pour l'exploitation des mines de charbon

Info

Publication number
CA473892A
CA473892A CA473892A CA473892DA CA473892A CA 473892 A CA473892 A CA 473892A CA 473892 A CA473892 A CA 473892A CA 473892D A CA473892D A CA 473892DA CA 473892 A CA473892 A CA 473892A
Authority
CA
Canada
Prior art keywords
mining
coal
machines
Prior art date
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
CA473892A
Other languages
English (en)
Inventor
Bolton Arthur
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.)
MARTINS BANK Ltd
Original Assignee
MARTINS BANK Ltd
Publication date
Application granted granted Critical
Publication of CA473892A publication Critical patent/CA473892A/fr
Expired legal-status Critical Current

Links

CA473892A Machines pour l'exploitation des mines de charbon Expired CA473892A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA473892T

Publications (1)

Publication Number Publication Date
CA473892A true CA473892A (fr) 1951-05-22

Family

ID=35607864

Family Applications (1)

Application Number Title Priority Date Filing Date
CA473892A Expired CA473892A (fr) Machines pour l'exploitation des mines de charbon

Country Status (1)

Country Link
CA (1) CA473892A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2691511A (en) * 1952-03-12 1954-10-12 Goodman Mfg Co Rotary drum type cutting and dislodging head
US3695722A (en) * 1969-02-27 1972-10-03 Errut Prod Ltd Apparatus for treating or digging into surfaces and cutting members for this apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2691511A (en) * 1952-03-12 1954-10-12 Goodman Mfg Co Rotary drum type cutting and dislodging head
US3695722A (en) * 1969-02-27 1972-10-03 Errut Prod Ltd Apparatus for treating or digging into surfaces and cutting members for this apparatus

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