CA158106A - Crayon de plomb - Google Patents

Crayon de plomb

Info

Publication number
CA158106A
CA158106A CA000158106A CA158106DA CA158106A CA 158106 A CA158106 A CA 158106A CA 000158106 A CA000158106 A CA 000158106A CA 158106D A CA158106D A CA 158106DA CA 158106 A CA158106 A CA 158106A
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
CA000158106A
Other languages
English (en)
Inventor
Charles R. Keeran
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 CA158106A publication Critical patent/CA158106A/fr
Expired legal-status Critical Current

Links

CA000158106A 1914-04-11 1914-04-11 Crayon de plomb Expired CA158106A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA158106T 1914-04-11

Publications (1)

Publication Number Publication Date
CA158106A true CA158106A (fr) 1914-09-29

Family

ID=45277811

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000158106A Expired CA158106A (fr) 1914-04-11 1914-04-11 Crayon de plomb

Country Status (1)

Country Link
CA (1) CA158106A (fr)

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