CA767887A - Earth temperature control apparatus for use in permafrost regions - Google Patents

Earth temperature control apparatus for use in permafrost regions

Info

Publication number
CA767887A
CA767887A CA767887A CA767887DA CA767887A CA 767887 A CA767887 A CA 767887A CA 767887 A CA767887 A CA 767887A CA 767887D A CA767887D A CA 767887DA CA 767887 A CA767887 A CA 767887A
Authority
CA
Canada
Prior art keywords
control apparatus
temperature control
earth temperature
permafrost regions
permafrost
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
CA767887A
Inventor
L. Long Erwin
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA767887A publication Critical patent/CA767887A/en
Expired legal-status Critical Current

Links

CA767887A Earth temperature control apparatus for use in permafrost regions Expired CA767887A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA767887T

Publications (1)

Publication Number Publication Date
CA767887A true CA767887A (en) 1967-09-26

Family

ID=36211295

Family Applications (1)

Application Number Title Priority Date Filing Date
CA767887A Expired CA767887A (en) Earth temperature control apparatus for use in permafrost regions

Country Status (1)

Country Link
CA (1) CA767887A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3791443A (en) * 1971-12-13 1974-02-12 Atlantic Richfield Co Foundation for construction on frozen substrata

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3791443A (en) * 1971-12-13 1974-02-12 Atlantic Richfield Co Foundation for construction on frozen substrata

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