CA120894A - Crayon de mine - Google Patents

Crayon de mine

Info

Publication number
CA120894A
CA120894A CA000120894A CA120894DA CA120894A CA 120894 A CA120894 A CA 120894A CA 000120894 A CA000120894 A CA 000120894A CA 120894D A CA120894D A CA 120894DA CA 120894 A CA120894 A CA 120894A
Authority
CA
Canada
Prior art keywords
lead pencil
pencil
lead
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
CA000120894A
Other languages
English (en)
Inventor
James Harry Keighly Mccollum
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA120894A publication Critical patent/CA120894A/fr
Expired legal-status Critical Current

Links

CA000120894A 1909-03-31 1909-03-31 Crayon de mine Expired CA120894A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA120894T 1909-03-31

Publications (1)

Publication Number Publication Date
CA120894A true CA120894A (fr) 1909-09-28

Family

ID=45240618

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000120894A Expired CA120894A (fr) 1909-03-31 1909-03-31 Crayon de mine

Country Status (1)

Country Link
CA (1) CA120894A (fr)

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