CA868708A - Method and apparatus for making helically ribbed tubing - Google Patents

Method and apparatus for making helically ribbed tubing

Info

Publication number
CA868708A
CA868708A CA868708A CA868708DA CA868708A CA 868708 A CA868708 A CA 868708A CA 868708 A CA868708 A CA 868708A CA 868708D A CA868708D A CA 868708DA CA 868708 A CA868708 A CA 868708A
Authority
CA
Canada
Prior art keywords
helically ribbed
ribbed tubing
making helically
making
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
CA868708A
Inventor
J. Perusse Norman
D. Cheever Wilbur
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.)
Wiremold Co
Original Assignee
Wiremold Co
Publication date
Application granted granted Critical
Publication of CA868708A publication Critical patent/CA868708A/en
Expired legal-status Critical Current

Links

CA868708A Method and apparatus for making helically ribbed tubing Expired CA868708A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA868708T

Publications (1)

Publication Number Publication Date
CA868708A true CA868708A (en) 1971-04-20

Family

ID=36354794

Family Applications (1)

Application Number Title Priority Date Filing Date
CA868708A Expired CA868708A (en) Method and apparatus for making helically ribbed tubing

Country Status (1)

Country Link
CA (1) CA868708A (en)

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