CA188970A - Appareil a miner le charbon - Google Patents

Appareil a miner le charbon

Info

Publication number
CA188970A
CA188970A CA000188970A CA188970DA CA188970A CA 188970 A CA188970 A CA 188970A CA 000188970 A CA000188970 A CA 000188970A CA 188970D A CA188970D A CA 188970DA CA 188970 A CA188970 A CA 188970A
Authority
CA
Canada
Prior art keywords
coal mining
mining apparatus
coal
mining
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
CA000188970A
Other languages
English (en)
Inventor
Harry Addison Kuhn
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 CA188970A publication Critical patent/CA188970A/fr
Expired legal-status Critical Current

Links

CA000188970A 1917-08-06 1917-08-06 Appareil a miner le charbon Expired CA188970A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA188970T 1917-08-06

Publications (1)

Publication Number Publication Date
CA188970A true CA188970A (fr) 1919-03-04

Family

ID=45308621

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000188970A Expired CA188970A (fr) 1917-08-06 1917-08-06 Appareil a miner le charbon

Country Status (1)

Country Link
CA (1) CA188970A (fr)

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