CA817803A - Tunneling machine with reversible cutterhead - Google Patents

Tunneling machine with reversible cutterhead

Info

Publication number
CA817803A
CA817803A CA817803A CA817803DA CA817803A CA 817803 A CA817803 A CA 817803A CA 817803 A CA817803 A CA 817803A CA 817803D A CA817803D A CA 817803DA CA 817803 A CA817803 A CA 817803A
Authority
CA
Canada
Prior art keywords
cutterhead
reversible
tunneling machine
tunneling
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
CA817803A
Inventor
F. Winberg Douglas
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.)
JAMES S ROBBINS AND ASSOCIATES
Original Assignee
JAMES S ROBBINS AND ASSOCIATES
Publication date
Application granted granted Critical
Publication of CA817803A publication Critical patent/CA817803A/en
Expired legal-status Critical Current

Links

CA817803A Tunneling machine with reversible cutterhead Expired CA817803A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA817803T

Publications (1)

Publication Number Publication Date
CA817803A true CA817803A (en) 1969-07-15

Family

ID=36290343

Family Applications (1)

Application Number Title Priority Date Filing Date
CA817803A Expired CA817803A (en) Tunneling machine with reversible cutterhead

Country Status (1)

Country Link
CA (1) CA817803A (en)

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