CA121471A - Sewer ventilation - Google Patents

Sewer ventilation

Info

Publication number
CA121471A
CA121471A CA000121471A CA121471DA CA121471A CA 121471 A CA121471 A CA 121471A CA 000121471 A CA000121471 A CA 000121471A CA 121471D A CA121471D A CA 121471DA CA 121471 A CA121471 A CA 121471A
Authority
CA
Canada
Prior art keywords
sewer
ventilation
sewer ventilation
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
CA000121471A
Other languages
French (fr)
Inventor
Robert Knox
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA121471A publication Critical patent/CA121471A/en
Expired legal-status Critical Current

Links

CA000121471A 1909-04-16 1909-04-16 Sewer ventilation Expired CA121471A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA121471T 1909-04-16

Publications (1)

Publication Number Publication Date
CA121471A true CA121471A (en) 1909-10-26

Family

ID=45241195

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000121471A Expired CA121471A (en) 1909-04-16 1909-04-16 Sewer ventilation

Country Status (1)

Country Link
CA (1) CA121471A (en)

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