EP 0161808 A1 19851121 - Drawing board.
Title (en)
Drawing board.
Title (de)
Zeichenbrett.
Title (fr)
Planche à dessin.
Publication
Application
Priority
NZ 20784884 A 19840413
Abstract (en)
A drafting system includes a drawing board (12) and drawing instrument(s) (30) for use with the board for the production of perspective drawings. The board includes a drawing surface (20) and guide means (2(L), 2(R)) on at least one side of the drawing surface (20) for cooperative engagement by the instrument(s) (30) to produce perspective views having vanishing points (VP(2L), VP(2R)) at one or both sides of the drawing surface (20). The board (12) further includes guide means (3(T), 3(B)), above and/or below the drawing surface (20) to permit the production of height and/or depth perspective drawings having vanishing points above (VP(3B)) and/or below the drawing surface (20). In one form of the invention (Figure 10) at least some of the guide means are disposed on a removable and replaceable portion (60) of the board to permit use of guide means having different characteristics.
IPC 1-7
IPC 8 full level
B43L 5/00 (2006.01); B43L 13/14 (2006.01)
CPC (source: EP KR)
B43L 5/00 (2013.01 - KR); B43L 13/142 (2013.01 - EP)
Citation (search report)
- [XP] GB 2132562 A 19840711 - NEEDLE HUMPHREY VINCENT, et al
- [XP] GB 2143779 A 19850220 - LAMBDA INTEGRAL DESIGN LIMITED
- [YD] US 4380124 A 19830419 - SMITH JOSEPH [NZ]
- [YD] DE 1087359 B 19600818 - LEUNA WERKE VEB
- [A] DE 76241 C
- [A] US 2475021 A 19490705 - GIBBONS JOHN P, et al
- [A] US 1969758 A 19340814 - MCCOY WILLIAM R
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0161808 A1 19851121; AU 4108685 A 19851017; DK 166885 A 19851014; DK 166885 D0 19850412; JP S60236799 A 19851125; KR 850007943 A 19851211; NZ 207848 A 19870123; ZA 852747 B 19851224
DOCDB simple family (application)
EP 85302594 A 19850412; AU 4108685 A 19850412; DK 166885 A 19850412; JP 7687685 A 19850412; KR 850002457 A 19850412; NZ 20784884 A 19840413; ZA 852747 A 19850412