CA220564A - Crayon perpetuel - Google Patents

Crayon perpetuel

Info

Publication number
CA220564A
CA220564A CA220564A CA220564DA CA220564A CA 220564 A CA220564 A CA 220564A CA 220564 A CA220564 A CA 220564A CA 220564D A CA220564D A CA 220564DA CA 220564 A CA220564 A CA 220564A
Authority
CA
Canada
Prior art keywords
perpetual
pencil
feed
feed pencil
perpetual feed
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
CA220564A
Other languages
English (en)
Inventor
E. Crow Henry
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 CA220564A publication Critical patent/CA220564A/fr
Expired legal-status Critical Current

Links

CA220564A Crayon perpetuel Expired CA220564A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA220564T

Publications (1)

Publication Number Publication Date
CA220564A true CA220564A (fr) 1922-07-04

Family

ID=35115008

Family Applications (1)

Application Number Title Priority Date Filing Date
CA220564A Expired CA220564A (fr) Crayon perpetuel

Country Status (1)

Country Link
CA (1) CA220564A (fr)

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