CA514649A - Earth strata cutting indicator - Google Patents

Earth strata cutting indicator

Info

Publication number
CA514649A
CA514649A CA514649A CA514649DA CA514649A CA 514649 A CA514649 A CA 514649A CA 514649 A CA514649 A CA 514649A CA 514649D A CA514649D A CA 514649DA CA 514649 A CA514649 A CA 514649A
Authority
CA
Canada
Prior art keywords
earth strata
cutting indicator
strata cutting
indicator
earth
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
CA514649A
Other languages
French (fr)
Inventor
L. Alspaugh Paul
Cook Graham
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 and Carbon Corp
Publication date
Application granted granted Critical
Publication of CA514649A publication Critical patent/CA514649A/en
Expired legal-status Critical Current

Links

CA514649A Earth strata cutting indicator Expired CA514649A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA514649T

Publications (1)

Publication Number Publication Date
CA514649A true CA514649A (en) 1955-07-12

Family

ID=35665738

Family Applications (1)

Application Number Title Priority Date Filing Date
CA514649A Expired CA514649A (en) Earth strata cutting indicator

Country Status (1)

Country Link
CA (1) CA514649A (en)

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