CA142200A - Tunnelling machine - Google Patents

Tunnelling machine

Info

Publication number
CA142200A
CA142200A CA000142200A CA142200DA CA142200A CA 142200 A CA142200 A CA 142200A CA 000142200 A CA000142200 A CA 000142200A CA 142200D A CA142200D A CA 142200DA CA 142200 A CA142200 A CA 142200A
Authority
CA
Canada
Prior art keywords
tunnelling machine
tunnelling
machine
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
CA000142200A
Other languages
French (fr)
Inventor
Adolphe Fred Walther
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 CA142200A publication Critical patent/CA142200A/en
Expired legal-status Critical Current

Links

CA000142200A 1912-03-19 1912-03-19 Tunnelling machine Expired CA142200A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA142200T 1912-03-19

Publications (1)

Publication Number Publication Date
CA142200A true CA142200A (en) 1912-08-06

Family

ID=45261915

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000142200A Expired CA142200A (en) 1912-03-19 1912-03-19 Tunnelling machine

Country Status (1)

Country Link
CA (1) CA142200A (en)

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