BE735921A - - Google Patents

Info

Publication number
BE735921A
BE735921A BE735921DA BE735921A BE 735921 A BE735921 A BE 735921A BE 735921D A BE735921D A BE 735921DA BE 735921 A BE735921 A BE 735921A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE735921A publication Critical patent/BE735921A/xx

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
BE735921D 1969-07-10 1969-07-10 BE735921A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE735921 1969-07-10

Publications (1)

Publication Number Publication Date
BE735921A true BE735921A (enrdf_load_stackoverflow) 1969-12-16

Family

ID=3855045

Family Applications (1)

Application Number Title Priority Date Filing Date
BE735921D BE735921A (enrdf_load_stackoverflow) 1969-07-10 1969-07-10

Country Status (4)

Country Link
BE (1) BE735921A (enrdf_load_stackoverflow)
DE (1) DE2034051A1 (enrdf_load_stackoverflow)
FR (1) FR2057737A5 (enrdf_load_stackoverflow)
GB (1) GB1311912A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR2057737A5 (enrdf_load_stackoverflow) 1971-05-21
GB1311912A (en) 1973-03-28
DE2034051A1 (de) 1971-01-14

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