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CA9980A - Method and apparatus for preventing colliery explosions - Google Patents

Method and apparatus for preventing colliery explosions

Info

Publication number
CA9980A
CA9980A CA000009980A CA9980DA CA9980A CA 9980 A CA9980 A CA 9980A CA 000009980 A CA000009980 A CA 000009980A CA 9980D A CA9980D A CA 9980DA CA 9980 A CA9980 A CA 9980A
Authority
CA
Canada
Prior art keywords
colliery
explosions
preventing
preventing colliery
colliery explosions
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
CA000009980A
Other languages
French (fr)
Inventor
William Young
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 CA9980A publication Critical patent/CA9980A/en
Expired legal-status Critical Current

Links

CA000009980A Method and apparatus for preventing colliery explosions Expired CA9980A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA9980T

Publications (1)

Publication Number Publication Date
CA9980A true CA9980A (en) 1879-05-26

Family

ID=45126527

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000009980A Expired CA9980A (en) Method and apparatus for preventing colliery explosions

Country Status (1)

Country Link
CA (1) CA9980A (en)

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