CA638968A - Perforation of sheet material - Google Patents

Perforation of sheet material

Info

Publication number
CA638968A
CA638968A CA638968A CA638968DA CA638968A CA 638968 A CA638968 A CA 638968A CA 638968 A CA638968 A CA 638968A CA 638968D A CA638968D A CA 638968DA CA 638968 A CA638968 A CA 638968A
Authority
CA
Canada
Prior art keywords
perforation
sheet material
sheet
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
CA638968A
Inventor
M. Dodge Howard
P. Reynolds Daniel
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.)
Aerojet Rocketdyne Holdings Inc
Original Assignee
General Tire and Rubber Co
Publication date
Application granted granted Critical
Publication of CA638968A publication Critical patent/CA638968A/en
Expired legal-status Critical Current

Links

CA638968A Perforation of sheet material Expired CA638968A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA638968T

Publications (1)

Publication Number Publication Date
CA638968A true CA638968A (en) 1962-03-27

Family

ID=35917478

Family Applications (1)

Application Number Title Priority Date Filing Date
CA638968A Expired CA638968A (en) Perforation of sheet material

Country Status (1)

Country Link
CA (1) CA638968A (en)

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