CA342395A - Pit-prop - Google Patents

Pit-prop

Info

Publication number
CA342395A
CA342395A CA342395A CA342395DA CA342395A CA 342395 A CA342395 A CA 342395A CA 342395 A CA342395 A CA 342395A CA 342395D A CA342395D A CA 342395DA CA 342395 A CA342395 A CA 342395A
Authority
CA
Canada
Prior art keywords
prop
pit
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
CA342395A
Other languages
French (fr)
Inventor
Toussaint Heinrich
Original Assignee
Toussaint Heinrich
Publication date
Priority to CA342395T priority Critical
Application granted granted Critical
Publication of CA342395A publication Critical patent/CA342395A/en
Expired legal-status Critical Current

Links

CA342395A Pit-prop Expired CA342395A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA342395T

Publications (1)

Publication Number Publication Date
CA342395A true CA342395A (en) 1934-06-19

Family

ID=35313670

Family Applications (1)

Application Number Title Priority Date Filing Date
CA342395A Expired CA342395A (en) Pit-prop

Country Status (1)

Country Link
CA (1) CA342395A (en)

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