GB1405379A - Method of making pencil leads for writing and drawing purposes - Google Patents

Method of making pencil leads for writing and drawing purposes

Info

Publication number
GB1405379A
GB1405379A GB2540373A GB2540373A GB1405379A GB 1405379 A GB1405379 A GB 1405379A GB 2540373 A GB2540373 A GB 2540373A GB 2540373 A GB2540373 A GB 2540373A GB 1405379 A GB1405379 A GB 1405379A
Authority
GB
United Kingdom
Prior art keywords
schwanhausser
filament
pencil leads
writing
linking
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
GB2540373A
Other languages
English (en)
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.)
Schwan Bleisteft Fabrik Schwanhaeusser and Co
Original Assignee
Schwan Bleisteft Fabrik Schwanhaeusser and Co
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 Schwan Bleisteft Fabrik Schwanhaeusser and Co filed Critical Schwan Bleisteft Fabrik Schwanhaeusser and Co
Publication of GB1405379A publication Critical patent/GB1405379A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D13/00—Pencil-leads; Crayon compositions; Chalk compositions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K19/00—Non-propelling pencils; Styles; Crayons; Chalks
    • B43K19/16—Making non-propelling pencils
    • B43K19/18—Making pencil writing-cores

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Inorganic Fibers (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
GB2540373A 1972-06-07 1973-05-29 Method of making pencil leads for writing and drawing purposes Expired GB1405379A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722227575 DE2227575B2 (de) 1972-06-07 1972-06-07 Verfahren zur Herstellung von Schreib- und Zeichenminen

Publications (1)

Publication Number Publication Date
GB1405379A true GB1405379A (en) 1975-09-10

Family

ID=5846991

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2540373A Expired GB1405379A (en) 1972-06-07 1973-05-29 Method of making pencil leads for writing and drawing purposes

Country Status (3)

Country Link
DE (1) DE2227575B2 (enrdf_load_html_response)
FR (1) FR2187869B3 (enrdf_load_html_response)
GB (1) GB1405379A (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118503C2 (de) * 1981-05-09 1985-12-12 Fa. J.S. Staedtler, 8500 Nürnberg Verfahren zur Herstellung von Schreib- oder Zeichenminen

Also Published As

Publication number Publication date
DE2227575B2 (de) 1980-07-31
DE2227575A1 (de) 1974-01-03
FR2187869A1 (enrdf_load_html_response) 1974-01-18
FR2187869B3 (enrdf_load_html_response) 1976-05-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee