CA771877A - Trench duct - Google Patents

Trench duct

Info

Publication number
CA771877A
CA771877A CA771877A CA771877DA CA771877A CA 771877 A CA771877 A CA 771877A CA 771877 A CA771877 A CA 771877A CA 771877D A CA771877D A CA 771877DA CA 771877 A CA771877 A CA 771877A
Authority
CA
Canada
Prior art keywords
trench duct
trench
duct
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
CA771877A
Inventor
M. Brotherhood Donald
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 CA771877A publication Critical patent/CA771877A/en
Expired legal-status Critical Current

Links

CA771877A Trench duct Expired CA771877A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA771877T

Publications (1)

Publication Number Publication Date
CA771877A true CA771877A (en) 1967-11-21

Family

ID=36215282

Family Applications (1)

Application Number Title Priority Date Filing Date
CA771877A Expired CA771877A (en) Trench duct

Country Status (1)

Country Link
CA (1) CA771877A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530627A (en) * 1968-07-10 1970-09-29 Gen Electric Trench header duct system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530627A (en) * 1968-07-10 1970-09-29 Gen Electric Trench header duct system

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