CA615573A - Method of and apparatus for perforating thermoplastic sheeting and tubing - Google Patents

Method of and apparatus for perforating thermoplastic sheeting and tubing

Info

Publication number
CA615573A
CA615573A CA615573A CA615573DA CA615573A CA 615573 A CA615573 A CA 615573A CA 615573 A CA615573 A CA 615573A CA 615573D A CA615573D A CA 615573DA CA 615573 A CA615573 A CA 615573A
Authority
CA
Canada
Prior art keywords
tubing
thermoplastic sheeting
perforating thermoplastic
perforating
sheeting
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
CA615573A
Inventor
S. Ferguson Joe
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
Publication date
Application granted granted Critical
Publication of CA615573A publication Critical patent/CA615573A/en
Expired legal-status Critical Current

Links

CA615573A Method of and apparatus for perforating thermoplastic sheeting and tubing Expired CA615573A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA615573T

Publications (1)

Publication Number Publication Date
CA615573A true CA615573A (en) 1961-02-28

Family

ID=35857879

Family Applications (1)

Application Number Title Priority Date Filing Date
CA615573A Expired CA615573A (en) Method of and apparatus for perforating thermoplastic sheeting and tubing

Country Status (1)

Country Link
CA (1) CA615573A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4821614A (en) * 1986-03-10 1989-04-18 International Business Machines Corporation Programmable magnetic repulsion punching apparatus
US4872381A (en) * 1988-07-13 1989-10-10 International Business Machines Corp. Programmable magnetic repulsion punching apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4821614A (en) * 1986-03-10 1989-04-18 International Business Machines Corporation Programmable magnetic repulsion punching apparatus
US4872381A (en) * 1988-07-13 1989-10-10 International Business Machines Corp. Programmable magnetic repulsion punching apparatus

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