CA499601A - Dispositif de perforation et de renforcement - Google Patents

Dispositif de perforation et de renforcement

Info

Publication number
CA499601A
CA499601A CA499601A CA499601DA CA499601A CA 499601 A CA499601 A CA 499601A CA 499601 A CA499601 A CA 499601A CA 499601D A CA499601D A CA 499601DA CA 499601 A CA499601 A CA 499601A
Authority
CA
Canada
Prior art keywords
perforating
reinforcing device
reinforcing
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
CA499601A
Other languages
English (en)
Inventor
Hirszson Benjamin
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 CA499601A publication Critical patent/CA499601A/fr
Expired legal-status Critical Current

Links

CA499601A Dispositif de perforation et de renforcement Expired CA499601A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA499601T

Publications (1)

Publication Number Publication Date
CA499601A true CA499601A (fr) 1954-01-26

Family

ID=35645044

Family Applications (1)

Application Number Title Priority Date Filing Date
CA499601A Expired CA499601A (fr) Dispositif de perforation et de renforcement

Country Status (1)

Country Link
CA (1) CA499601A (fr)

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