CA305548A - Tunnel tubulaire - Google Patents

Tunnel tubulaire

Info

Publication number
CA305548A
CA305548A CA305548A CA305548DA CA305548A CA 305548 A CA305548 A CA 305548A CA 305548 A CA305548 A CA 305548A CA 305548D A CA305548D A CA 305548DA CA 305548 A CA305548 A CA 305548A
Authority
CA
Canada
Prior art keywords
tube tunnel
tunnel
tube
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
CA305548A
Other languages
English (en)
Inventor
F. Porter George
P. Porter Robert
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
Publication date
Application granted granted Critical
Publication of CA305548A publication Critical patent/CA305548A/fr
Expired legal-status Critical Current

Links

CA305548A Tunnel tubulaire Expired CA305548A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA305548T

Publications (1)

Publication Number Publication Date
CA305548A true CA305548A (fr) 1930-11-04

Family

ID=35258697

Family Applications (1)

Application Number Title Priority Date Filing Date
CA305548A Expired CA305548A (fr) Tunnel tubulaire

Country Status (1)

Country Link
CA (1) CA305548A (fr)

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