BE439319A - - Google Patents

Info

Publication number
BE439319A
BE439319A BE439319DA BE439319A BE 439319 A BE439319 A BE 439319A BE 439319D A BE439319D A BE 439319DA BE 439319 A BE439319 A BE 439319A
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.)
Publication of BE439319A publication Critical patent/BE439319A/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
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/04—Blackboards
    • B43L1/10—Writing surfaces thereof
BE439319D 1939-09-20 BE439319A (en))

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES138662D DE735756C (de) 1939-09-20 1939-09-20 Schreibtafeln aus Aluminium oder Aluminiumlegierungen

Publications (1)

Publication Number Publication Date
BE439319A true BE439319A (en))

Family

ID=7540895

Family Applications (1)

Application Number Title Priority Date Filing Date
BE439319D BE439319A (en)) 1939-09-20

Country Status (2)

Country Link
BE (1) BE439319A (en))
DE (1) DE735756C (en))

Also Published As

Publication number Publication date
DE735756C (de) 1943-05-25

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