CA439737A - Appareil a former des ailettes annulaires sur tubes - Google Patents

Appareil a former des ailettes annulaires sur tubes

Info

Publication number
CA439737A
CA439737A CA439737A CA439737DA CA439737A CA 439737 A CA439737 A CA 439737A CA 439737 A CA439737 A CA 439737A CA 439737D A CA439737D A CA 439737DA CA 439737 A CA439737 A CA 439737A
Authority
CA
Canada
Prior art keywords
forming apparatus
annular fins
fins forming
tubing annular
tubing
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
CA439737A
Other languages
English (en)
Inventor
R. Schuler Otto
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.)
CALUMET AND HECLA CONS COPPER
Original Assignee
CALUMET AND HECLA CONS COPPER
Publication date
Application granted granted Critical
Publication of CA439737A publication Critical patent/CA439737A/fr
Expired legal-status Critical Current

Links

CA439737A Appareil a former des ailettes annulaires sur tubes Expired CA439737A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA439737T

Publications (1)

Publication Number Publication Date
CA439737A true CA439737A (fr) 1947-02-18

Family

ID=35554971

Family Applications (1)

Application Number Title Priority Date Filing Date
CA439737A Expired CA439737A (fr) Appareil a former des ailettes annulaires sur tubes

Country Status (1)

Country Link
CA (1) CA439737A (fr)

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