CA479521A - Tubes canneles a parois multiples - Google Patents

Tubes canneles a parois multiples

Info

Publication number
CA479521A
CA479521A CA479521A CA479521DA CA479521A CA 479521 A CA479521 A CA 479521A CA 479521 A CA479521 A CA 479521A CA 479521D A CA479521D A CA 479521DA CA 479521 A CA479521 A CA 479521A
Authority
CA
Canada
Prior art keywords
plural
wall corrugated
corrugated tubes
tubes
wall
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
CA479521A
Other languages
English (en)
Inventor
Dreyer Albert
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.)
METALLSCHLAUCHFABRIK AG
Original Assignee
METALLSCHLAUCHFABRIK AG
Publication date
Application granted granted Critical
Publication of CA479521A publication Critical patent/CA479521A/fr
Expired legal-status Critical Current

Links

CA479521A Tubes canneles a parois multiples Expired CA479521A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA479521T

Publications (1)

Publication Number Publication Date
CA479521A true CA479521A (fr) 1951-12-18

Family

ID=35619194

Family Applications (1)

Application Number Title Priority Date Filing Date
CA479521A Expired CA479521A (fr) Tubes canneles a parois multiples

Country Status (1)

Country Link
CA (1) CA479521A (fr)

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