CA764675A - Drainage pipes - Google Patents

Drainage pipes

Info

Publication number
CA764675A
CA764675A CA764675A CA764675DA CA764675A CA 764675 A CA764675 A CA 764675A CA 764675 A CA764675 A CA 764675A CA 764675D A CA764675D A CA 764675DA CA 764675 A CA764675 A CA 764675A
Authority
CA
Canada
Prior art keywords
drainage pipes
drainage
pipes
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
CA764675A
Inventor
A. Muirhead Leslie
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.)
Shell USA Inc
Original Assignee
Shell Oil Co
Publication date
Application granted granted Critical
Publication of CA764675A publication Critical patent/CA764675A/en
Expired legal-status Critical Current

Links

CA764675A Drainage pipes Expired CA764675A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA764675T

Publications (1)

Publication Number Publication Date
CA764675A true CA764675A (en) 1967-08-08

Family

ID=36208088

Family Applications (1)

Application Number Title Priority Date Filing Date
CA764675A Expired CA764675A (en) Drainage pipes

Country Status (1)

Country Link
CA (1) CA764675A (en)

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