CA4560A - Apparatus for ventilating for sewers and mines - Google Patents

Apparatus for ventilating for sewers and mines

Info

Publication number
CA4560A
CA4560A CA000004560A CA4560DA CA4560A CA 4560 A CA4560 A CA 4560A CA 000004560 A CA000004560 A CA 000004560A CA 4560D A CA4560D A CA 4560DA CA 4560 A CA4560 A CA 4560A
Authority
CA
Canada
Prior art keywords
sewers
mines
ventilating
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
CA000004560A
Other languages
French (fr)
Inventor
Francis Rourk
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 CA4560A publication Critical patent/CA4560A/en
Expired legal-status Critical Current

Links

CA000004560A Apparatus for ventilating for sewers and mines Expired CA4560A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA4560T

Publications (1)

Publication Number Publication Date
CA4560A true CA4560A (en) 1875-04-05

Family

ID=45121116

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000004560A Expired CA4560A (en) Apparatus for ventilating for sewers and mines

Country Status (1)

Country Link
CA (1) CA4560A (en)

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