CA410091A - Mineral piercing and cutting apparatus - Google Patents

Mineral piercing and cutting apparatus

Info

Publication number
CA410091A
CA410091A CA410091A CA410091DA CA410091A CA 410091 A CA410091 A CA 410091A CA 410091 A CA410091 A CA 410091A CA 410091D A CA410091D A CA 410091DA CA 410091 A CA410091 A CA 410091A
Authority
CA
Canada
Prior art keywords
cutting apparatus
piercing
mineral
mineral piercing
cutting
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
CA410091A
Other languages
French (fr)
Inventor
B. Aitchison Robert
H. Smith George
W. Swartout 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.)
Dominion Oxygen Co Ltd
Original Assignee
Dominion Oxygen Co Ltd
Publication date
Application granted granted Critical
Publication of CA410091A publication Critical patent/CA410091A/en
Expired legal-status Critical Current

Links

CA410091A Mineral piercing and cutting apparatus Expired CA410091A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA410091T

Publications (1)

Publication Number Publication Date
CA410091A true CA410091A (en) 1943-01-19

Family

ID=35421393

Family Applications (1)

Application Number Title Priority Date Filing Date
CA410091A Expired CA410091A (en) Mineral piercing and cutting apparatus

Country Status (1)

Country Link
CA (1) CA410091A (en)

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