CA623632A - Thermal rock piercing control apparatus - Google Patents

Thermal rock piercing control apparatus

Info

Publication number
CA623632A
CA623632A CA623632A CA623632DA CA623632A CA 623632 A CA623632 A CA 623632A CA 623632 A CA623632 A CA 623632A CA 623632D A CA623632D A CA 623632DA CA 623632 A CA623632 A CA 623632A
Authority
CA
Canada
Prior art keywords
control apparatus
piercing control
thermal rock
rock piercing
thermal
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
CA623632A
Inventor
J. Calaman Joseph
H. Royer Stanley
J. Miller Alfred
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
Publication date
Application granted granted Critical
Publication of CA623632A publication Critical patent/CA623632A/en
Expired legal-status Critical Current

Links

CA623632A Thermal rock piercing control apparatus Expired CA623632A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA623632T

Publications (1)

Publication Number Publication Date
CA623632A true CA623632A (en) 1961-07-11

Family

ID=35878811

Family Applications (1)

Application Number Title Priority Date Filing Date
CA623632A Expired CA623632A (en) Thermal rock piercing control apparatus

Country Status (1)

Country Link
CA (1) CA623632A (en)

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