GB2248212B - Drawing instrument - Google Patents

Drawing instrument

Info

Publication number
GB2248212B
GB2248212B GB9019711A GB9019711A GB2248212B GB 2248212 B GB2248212 B GB 2248212B GB 9019711 A GB9019711 A GB 9019711A GB 9019711 A GB9019711 A GB 9019711A GB 2248212 B GB2248212 B GB 2248212B
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
GB9019711A
Other versions
GB9019711D0 (en
GB2248212A (en
Inventor
Clive Walter Warwicker
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.)
Helix Ltd
Original Assignee
Helix 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
Application filed by Helix Ltd filed Critical Helix Ltd
Priority to GB9019711A priority Critical patent/GB2248212B/en
Publication of GB9019711D0 publication Critical patent/GB9019711D0/en
Priority to GB9108704A priority patent/GB2249058B/en
Priority to ZA917054A priority patent/ZA917054B/en
Priority to AU83714/91A priority patent/AU638603B2/en
Publication of GB2248212A publication Critical patent/GB2248212A/en
Application granted granted Critical
Publication of GB2248212B publication Critical patent/GB2248212B/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
    • B43L9/00—Circular curve-drawing or like instruments
    • B43L9/02—Compasses
    • B43L9/04—Beam compasses
GB9019711A 1990-09-08 1990-09-08 Drawing instrument Expired - Lifetime GB2248212B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB9019711A GB2248212B (en) 1990-09-08 1990-09-08 Drawing instrument
GB9108704A GB2249058B (en) 1990-09-08 1991-04-23 Improvements in or relating to mathematical instruments
ZA917054A ZA917054B (en) 1990-09-08 1991-09-05 Drawing instrument
AU83714/91A AU638603B2 (en) 1990-09-08 1991-09-09 Drawing instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9019711A GB2248212B (en) 1990-09-08 1990-09-08 Drawing instrument

Publications (3)

Publication Number Publication Date
GB9019711D0 GB9019711D0 (en) 1990-10-24
GB2248212A GB2248212A (en) 1992-04-01
GB2248212B true GB2248212B (en) 1993-06-16

Family

ID=10681932

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9019711A Expired - Lifetime GB2248212B (en) 1990-09-08 1990-09-08 Drawing instrument

Country Status (3)

Country Link
AU (1) AU638603B2 (en)
GB (1) GB2248212B (en)
ZA (1) ZA917054B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB364025A (en) * 1930-09-25 1931-12-28 Arthur John Thorold Improvements in drawing-compasses
GB589174A (en) * 1945-03-29 1947-06-12 William Arthur Burkinshaw Improvements in or relating to beam compasses
US3889377A (en) * 1974-01-09 1975-06-17 Warren D Novak Slide compass
US4843719A (en) * 1986-07-29 1989-07-04 Kiefer, Klaus, Jurgen And Straten, Gunter Pair of measuring compasses

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118106B (en) * 1982-04-13 1985-05-01 Helix International Ltd Drawing instrument

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB364025A (en) * 1930-09-25 1931-12-28 Arthur John Thorold Improvements in drawing-compasses
GB589174A (en) * 1945-03-29 1947-06-12 William Arthur Burkinshaw Improvements in or relating to beam compasses
US3889377A (en) * 1974-01-09 1975-06-17 Warren D Novak Slide compass
US4843719A (en) * 1986-07-29 1989-07-04 Kiefer, Klaus, Jurgen And Straten, Gunter Pair of measuring compasses

Also Published As

Publication number Publication date
AU8371491A (en) 1992-03-12
GB9019711D0 (en) 1990-10-24
AU638603B2 (en) 1993-07-01
ZA917054B (en) 1992-07-29
GB2248212A (en) 1992-04-01

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