GB575867A - Improvements in coloured marking leads or elements - Google Patents

Improvements in coloured marking leads or elements

Info

Publication number
GB575867A
GB575867A GB7202/44A GB720244A GB575867A GB 575867 A GB575867 A GB 575867A GB 7202/44 A GB7202/44 A GB 7202/44A GB 720244 A GB720244 A GB 720244A GB 575867 A GB575867 A GB 575867A
Authority
GB
United Kingdom
Prior art keywords
per cent
clay
materials
impregnant
pencils
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
GB7202/44A
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.)
M A FERST Ltd
Original Assignee
M A FERST Ltd
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
Priority claimed from US485362A external-priority patent/US2355638A/en
Application filed by M A FERST Ltd filed Critical M A FERST Ltd
Publication of GB575867A publication Critical patent/GB575867A/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)
  • Paints Or Removers (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
GB7202/44A 1943-05-01 1944-04-19 Improvements in coloured marking leads or elements Expired GB575867A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US916618XA 1943-05-01 1943-05-01
US575867XA 1943-05-01 1943-05-01
US485362A US2355638A (en) 1943-05-01 1943-05-01 Color marking element

Publications (1)

Publication Number Publication Date
GB575867A true GB575867A (en) 1946-03-08

Family

ID=31499186

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7202/44A Expired GB575867A (en) 1943-05-01 1944-04-19 Improvements in coloured marking leads or elements

Country Status (3)

Country Link
BE (1) BE460907A (enrdf_load_stackoverflow)
FR (1) FR916618A (enrdf_load_stackoverflow)
GB (1) GB575867A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1230949B (de) * 1962-10-10 1966-12-22 Georg Linz Verfahren zur Herstellung von Schreibstiftminen

Also Published As

Publication number Publication date
BE460907A (enrdf_load_stackoverflow)
FR916618A (fr) 1946-12-11

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