CA6970A - Machine a faire les tuyaux spiroides - Google Patents

Machine a faire les tuyaux spiroides

Info

Publication number
CA6970A
CA6970A CA000006970A CA6970DA CA6970A CA 6970 A CA6970 A CA 6970A CA 000006970 A CA000006970 A CA 000006970A CA 6970D A CA6970D A CA 6970DA CA 6970 A CA6970 A CA 6970A
Authority
CA
Canada
Prior art keywords
machine
spirally formed
formed tubes
making spirally
making
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
CA000006970A
Other languages
English (en)
Inventor
John B. Root
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 CA6970A publication Critical patent/CA6970A/fr
Expired legal-status Critical Current

Links

CA000006970A Machine a faire les tuyaux spiroides Expired CA6970A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA6970T

Publications (1)

Publication Number Publication Date
CA6970A true CA6970A (fr) 1877-01-19

Family

ID=45123522

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000006970A Expired CA6970A (fr) Machine a faire les tuyaux spiroides

Country Status (1)

Country Link
CA (1) CA6970A (fr)

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