GB2203998B - Drawing instrument - Google Patents

Drawing instrument

Info

Publication number
GB2203998B
GB2203998B GB8707092A GB8707092A GB2203998B GB 2203998 B GB2203998 B GB 2203998B GB 8707092 A GB8707092 A GB 8707092A GB 8707092 A GB8707092 A GB 8707092A GB 2203998 B GB2203998 B GB 2203998B
Authority
GB
United Kingdom
Prior art keywords
drawing instrument
instrument
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 - Lifetime
Application number
GB8707092A
Other versions
GB2203998A (en
GB8707092D0 (en
Inventor
William Cochrane
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
Priority to GB8707092A priority Critical patent/GB2203998B/en
Publication of GB8707092D0 publication Critical patent/GB8707092D0/en
Priority to PCT/GB1988/000804 priority patent/WO1990003278A1/en
Publication of GB2203998A publication Critical patent/GB2203998A/en
Application granted granted Critical
Publication of GB2203998B publication Critical patent/GB2203998B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • B43L13/14—Devices for drawing in perspective
    • B43L13/141—Two-dimensional devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L7/00—Straightedges
    • B43L7/10—Plural straightedges relatively movable
    • B43L7/14—Square and sliding straight edges
GB8707092A 1987-03-25 1987-03-25 Drawing instrument Expired - Lifetime GB2203998B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB8707092A GB2203998B (en) 1987-03-25 1987-03-25 Drawing instrument
PCT/GB1988/000804 WO1990003278A1 (en) 1987-03-25 1988-09-30 Drawing instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8707092A GB2203998B (en) 1987-03-25 1987-03-25 Drawing instrument

Publications (3)

Publication Number Publication Date
GB8707092D0 GB8707092D0 (en) 1987-04-29
GB2203998A GB2203998A (en) 1988-11-02
GB2203998B true GB2203998B (en) 1990-11-14

Family

ID=10614592

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8707092A Expired - Lifetime GB2203998B (en) 1987-03-25 1987-03-25 Drawing instrument

Country Status (2)

Country Link
GB (1) GB2203998B (en)
WO (1) WO1990003278A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203998B (en) * 1987-03-25 1990-11-14 William Cochrane Drawing instrument

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1461543A1 (en) * 1965-03-19 1969-01-02 Arkenberg Karl Heinz Drawing device for vanishing point perspective drawing
US4159571A (en) * 1977-12-30 1979-07-03 Jervis Jr John H Geometrical instrument
GB2203998B (en) * 1987-03-25 1990-11-14 William Cochrane Drawing instrument

Also Published As

Publication number Publication date
GB2203998A (en) 1988-11-02
GB8707092D0 (en) 1987-04-29
WO1990003278A1 (en) 1990-04-05

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Legal Events

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

Effective date: 19960325