CA372261A - Ventilation apparatus for mines - Google Patents

Ventilation apparatus for mines

Info

Publication number
CA372261A
CA372261A CA372261A CA372261DA CA372261A CA 372261 A CA372261 A CA 372261A CA 372261 A CA372261 A CA 372261A CA 372261D A CA372261D A CA 372261DA CA 372261 A CA372261 A CA 372261A
Authority
CA
Canada
Prior art keywords
mines
ventilation apparatus
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
CA372261A
Other languages
French (fr)
Inventor
S. Richardson Allan
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 CA372261A publication Critical patent/CA372261A/en
Expired legal-status Critical Current

Links

CA372261A Ventilation apparatus for mines Expired CA372261A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA372261T

Publications (1)

Publication Number Publication Date
CA372261A true CA372261A (en) 1938-03-01

Family

ID=35373326

Family Applications (1)

Application Number Title Priority Date Filing Date
CA372261A Expired CA372261A (en) Ventilation apparatus for mines

Country Status (1)

Country Link
CA (1) CA372261A (en)

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