CA634148A - Apparatus for constructing tunnels - Google Patents

Apparatus for constructing tunnels

Info

Publication number
CA634148A
CA634148A CA634148A CA634148DA CA634148A CA 634148 A CA634148 A CA 634148A CA 634148 A CA634148 A CA 634148A CA 634148D A CA634148D A CA 634148DA CA 634148 A CA634148 A CA 634148A
Authority
CA
Canada
Prior art keywords
constructing tunnels
tunnels
constructing
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
CA634148A
Inventor
P. Washabaugh Edward
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.)
American Marietta Co
Original Assignee
American Marietta Co
Publication date
Application granted granted Critical
Publication of CA634148A publication Critical patent/CA634148A/en
Expired legal-status Critical Current

Links

CA634148A Apparatus for constructing tunnels Expired CA634148A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA634148T

Publications (1)

Publication Number Publication Date
CA634148A true CA634148A (en) 1962-01-09

Family

ID=35890316

Family Applications (1)

Application Number Title Priority Date Filing Date
CA634148A Expired CA634148A (en) Apparatus for constructing tunnels

Country Status (1)

Country Link
CA (1) CA634148A (en)

Similar Documents

Publication Publication Date Title
CA634612A (en) Apparatus for jacking tunnels
CA634148A (en) Apparatus for constructing tunnels
CA644004A (en) Tunneling apparatus
CA648106A (en) Register cutting apparatus
AU269220B2 (en) Excavating apparatus
CA636355A (en) Excavating apparatus
CA635144A (en) Venoclysis apparatus
CA648072A (en) Article-transfer apparatus
AU277618B2 (en) Delay-correction apparatus
CA652007A (en) Well-perforating apparatus
CA650658A (en) Sound-transducing apparatus
CA636154A (en) Strand-treating apparatus
CA636291A (en) Film-dispensing apparatus
CA639053A (en) Tobacco-manipulating apparatus
CA643599A (en) Indicia-applying apparatus
CA646820A (en) Yarn-treating apparatus
AU282010B2 (en) Apparatus
CA648199A (en) Phase-shift-reducing apparatus
AU270082B2 (en) Drilling apparatus
AU3451163A (en) Excavating apparatus
CA648643A (en) Time controlled apparatus
CA650825A (en) Apparatus for potential survey
CA643266A (en) Variation apparatus
CA649892A (en) Dredging apparatus
CA638094A (en) Gyroscopic apparatus