CA239819A - Mecanisme a perforer le papier - Google Patents

Mecanisme a perforer le papier

Info

Publication number
CA239819A
CA239819A CA239819A CA239819DA CA239819A CA 239819 A CA239819 A CA 239819A CA 239819 A CA239819 A CA 239819A CA 239819D A CA239819D A CA 239819DA CA 239819 A CA239819 A CA 239819A
Authority
CA
Canada
Prior art keywords
perforating mechanism
paper perforating
paper
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
CA239819A
Other languages
English (en)
Inventor
W. Hudson David
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 CA239819A publication Critical patent/CA239819A/fr
Expired legal-status Critical Current

Links

CA239819A Mecanisme a perforer le papier Expired CA239819A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA239819T

Publications (1)

Publication Number Publication Date
CA239819A true CA239819A (fr) 1924-05-06

Family

ID=35143850

Family Applications (1)

Application Number Title Priority Date Filing Date
CA239819A Expired CA239819A (fr) Mecanisme a perforer le papier

Country Status (1)

Country Link
CA (1) CA239819A (fr)

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