CA520155A - Fabrication de mines a ecrire et dessiner - Google Patents

Fabrication de mines a ecrire et dessiner

Info

Publication number
CA520155A
CA520155A CA520155A CA520155DA CA520155A CA 520155 A CA520155 A CA 520155A CA 520155 A CA520155 A CA 520155A CA 520155D A CA520155D A CA 520155DA CA 520155 A CA520155 A CA 520155A
Authority
CA
Canada
Prior art keywords
writing
manufacture
drawing leads
leads
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
CA520155A
Other languages
English (en)
Inventor
Loy Georg
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.)
JS Staedtler GmbH and Co KG
Original Assignee
JS Staedtler GmbH and Co KG
Publication date
Application granted granted Critical
Publication of CA520155A publication Critical patent/CA520155A/fr
Expired legal-status Critical Current

Links

CA520155A Fabrication de mines a ecrire et dessiner Expired CA520155A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA520155T

Publications (1)

Publication Number Publication Date
CA520155A true CA520155A (fr) 1955-12-27

Family

ID=35673370

Family Applications (1)

Application Number Title Priority Date Filing Date
CA520155A Expired CA520155A (fr) Fabrication de mines a ecrire et dessiner

Country Status (1)

Country Link
CA (1) CA520155A (fr)

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