AU485098B2 - Tunneling shield - Google Patents

Tunneling shield

Info

Publication number
AU485098B2
AU485098B2 AU68149/74A AU6814974A AU485098B2 AU 485098 B2 AU485098 B2 AU 485098B2 AU 68149/74 A AU68149/74 A AU 68149/74A AU 6814974 A AU6814974 A AU 6814974A AU 485098 B2 AU485098 B2 AU 485098B2
Authority
AU
Australia
Prior art keywords
tunneling shield
tunneling
shield
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
AU68149/74A
Other versions
AU6814974A (en
Inventor
Frederick Winberg And Norman Dean Dyer 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.)
Dresser Industries Inc
Original Assignee
Dresser Industries Inc
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
Priority claimed from US363035A external-priority patent/US3870368A/en
Application filed by Dresser Industries Inc filed Critical Dresser Industries Inc
Application granted granted Critical
Publication of AU6814974A publication Critical patent/AU6814974A/en
Publication of AU485098B2 publication Critical patent/AU485098B2/en
Expired legal-status Critical Current

Links

AU68149/74A 1973-05-23 1974-04-22 Tunneling shield Expired AU485098B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
USUS363035 1973-05-23
US363035A US3870368A (en) 1973-05-23 1973-05-23 Tunneling shield

Publications (2)

Publication Number Publication Date
AU6814974A AU6814974A (en) 1975-10-23
AU485098B2 true AU485098B2 (en) 1975-10-23

Family

ID=

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