CA499396A - Perforating apparatus - Google Patents

Perforating apparatus

Info

Publication number
CA499396A
CA499396A CA499396A CA499396DA CA499396A CA 499396 A CA499396 A CA 499396A CA 499396 A CA499396 A CA 499396A CA 499396D A CA499396D A CA 499396DA CA 499396 A CA499396 A CA 499396A
Authority
CA
Canada
Prior art keywords
perforating apparatus
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
CA499396A
Other languages
French (fr)
Inventor
J. Zenner Walter
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.)
AT&T Teletype Corp
Original Assignee
Teletype Corp
Publication date
Application granted granted Critical
Publication of CA499396A publication Critical patent/CA499396A/en
Expired legal-status Critical Current

Links

CA499396A Perforating apparatus Expired CA499396A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA499396T

Publications (1)

Publication Number Publication Date
CA499396A true CA499396A (en) 1954-01-19

Family

ID=35644839

Family Applications (1)

Application Number Title Priority Date Filing Date
CA499396A Expired CA499396A (en) Perforating apparatus

Country Status (1)

Country Link
CA (1) CA499396A (en)

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