JPH0128071B2 - - Google Patents

Info

Publication number
JPH0128071B2
JPH0128071B2 JP2642381A JP2642381A JPH0128071B2 JP H0128071 B2 JPH0128071 B2 JP H0128071B2 JP 2642381 A JP2642381 A JP 2642381A JP 2642381 A JP2642381 A JP 2642381A JP H0128071 B2 JPH0128071 B2 JP H0128071B2
Authority
JP
Japan
Prior art keywords
parts
weight
resin
core
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
JP2642381A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57141469A (en
Inventor
Masatoshi Abe
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.)
TONBO PENCIL
Original Assignee
TONBO PENCIL
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 TONBO PENCIL filed Critical TONBO PENCIL
Priority to JP2642381A priority Critical patent/JPS57141469A/ja
Publication of JPS57141469A publication Critical patent/JPS57141469A/ja
Publication of JPH0128071B2 publication Critical patent/JPH0128071B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Inks, Pencil-Leads, Or Crayons (AREA)
JP2642381A 1981-02-25 1981-02-25 Pencil lead Granted JPS57141469A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2642381A JPS57141469A (en) 1981-02-25 1981-02-25 Pencil lead

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2642381A JPS57141469A (en) 1981-02-25 1981-02-25 Pencil lead

Publications (2)

Publication Number Publication Date
JPS57141469A JPS57141469A (en) 1982-09-01
JPH0128071B2 true JPH0128071B2 (https=) 1989-05-31

Family

ID=12193108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2642381A Granted JPS57141469A (en) 1981-02-25 1981-02-25 Pencil lead

Country Status (1)

Country Link
JP (1) JPS57141469A (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7836498B2 (ja) * 2022-09-30 2026-03-27 ぺんてる株式会社 焼成鉛筆芯

Also Published As

Publication number Publication date
JPS57141469A (en) 1982-09-01

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