CA437867A - Appareil a perforer des matieres en feuille - Google Patents

Appareil a perforer des matieres en feuille

Info

Publication number
CA437867A
CA437867A CA437867A CA437867DA CA437867A CA 437867 A CA437867 A CA 437867A CA 437867 A CA437867 A CA 437867A CA 437867D A CA437867D A CA 437867DA CA 437867 A CA437867 A CA 437867A
Authority
CA
Canada
Prior art keywords
sheet material
perforating apparatus
material perforating
sheet
perforating
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
CA437867A
Other languages
English (en)
Inventor
F. Wales George
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 CA437867A publication Critical patent/CA437867A/fr
Expired legal-status Critical Current

Links

CA437867A Appareil a perforer des matieres en feuille Expired CA437867A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA437867T

Publications (1)

Publication Number Publication Date
CA437867A true CA437867A (fr) 1946-11-12

Family

ID=35553102

Family Applications (1)

Application Number Title Priority Date Filing Date
CA437867A Expired CA437867A (fr) Appareil a perforer des matieres en feuille

Country Status (1)

Country Link
CA (1) CA437867A (fr)

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