CA312649A - Perforating device - Google Patents

Perforating device

Info

Publication number
CA312649A
CA312649A CA312649A CA312649DA CA312649A CA 312649 A CA312649 A CA 312649A CA 312649 A CA312649 A CA 312649A CA 312649D A CA312649D A CA 312649DA CA 312649 A CA312649 A CA 312649A
Authority
CA
Canada
Prior art keywords
perforating device
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
CA312649A
Other languages
French (fr)
Inventor
Karl F. Ewald Bernhard
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.)
Tabulating Machine Co
Original Assignee
Tabulating Machine Co
Publication date
Application granted granted Critical
Publication of CA312649A publication Critical patent/CA312649A/en
Expired legal-status Critical Current

Links

CA312649A Perforating device Expired CA312649A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA312649T

Publications (1)

Publication Number Publication Date
CA312649A true CA312649A (en) 1931-06-23

Family

ID=35271975

Family Applications (1)

Application Number Title Priority Date Filing Date
CA312649A Expired CA312649A (en) Perforating device

Country Status (1)

Country Link
CA (1) CA312649A (en)

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