CA221885A - Procede de captation du charbon - Google Patents

Procede de captation du charbon

Info

Publication number
CA221885A
CA221885A CA221885A CA221885DA CA221885A CA 221885 A CA221885 A CA 221885A CA 221885 A CA221885 A CA 221885A CA 221885D A CA221885D A CA 221885DA CA 221885 A CA221885 A CA 221885A
Authority
CA
Canada
Prior art keywords
recovering coal
coal
recovering
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
CA221885A
Other languages
English (en)
Inventor
Edwin Holland Charles
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 CA221885A publication Critical patent/CA221885A/fr
Expired legal-status Critical Current

Links

CA221885A Procede de captation du charbon Expired CA221885A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA221885T

Publications (1)

Publication Number Publication Date
CA221885A true CA221885A (fr) 1922-08-08

Family

ID=35117487

Family Applications (1)

Application Number Title Priority Date Filing Date
CA221885A Expired CA221885A (fr) Procede de captation du charbon

Country Status (1)

Country Link
CA (1) CA221885A (fr)

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