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IT7829022A0 - Squadre e righe ad incastro. - Google Patents

Squadre e righe ad incastro.

Info

Publication number
IT7829022A0
IT7829022A0 IT7829022A IT2902278A IT7829022A0 IT 7829022 A0 IT7829022 A0 IT 7829022A0 IT 7829022 A IT7829022 A IT 7829022A IT 2902278 A IT2902278 A IT 2902278A IT 7829022 A0 IT7829022 A0 IT 7829022A0
Authority
IT
Italy
Prior art keywords
rows
squares
interlocking
interlocking squares
Prior art date
Application number
IT7829022A
Other languages
English (en)
Original Assignee
Piccardo Mario
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 Piccardo Mario filed Critical Piccardo Mario
Priority to IT7829022A priority Critical patent/IT7829022A0/it
Publication of IT7829022A0 publication Critical patent/IT7829022A0/it
Priority to GB7931835A priority patent/GB2032121A/en
Priority to DE19797926155U priority patent/DE7926155U1/de
Priority to FR7923397A priority patent/FR2439682A3/fr

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
    • B43L13/02—Draughting machines or drawing devices for keeping parallelism
    • B43L13/028—Hand held or associated with the writing instrument
IT7829022A 1978-10-24 1978-10-24 Squadre e righe ad incastro. IT7829022A0 (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT7829022A IT7829022A0 (it) 1978-10-24 1978-10-24 Squadre e righe ad incastro.
GB7931835A GB2032121A (en) 1978-10-24 1979-09-13 Mathematical drawing instruments
DE19797926155U DE7926155U1 (de) 1978-10-24 1979-09-14 Miteinander verbindbare zeichendreiecke o.dgl.
FR7923397A FR2439682A3 (fr) 1978-10-24 1979-09-20 Equerres de dessin a accrochage rapide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT7829022A IT7829022A0 (it) 1978-10-24 1978-10-24 Squadre e righe ad incastro.

Publications (1)

Publication Number Publication Date
IT7829022A0 true IT7829022A0 (it) 1978-10-24

Family

ID=11225768

Family Applications (1)

Application Number Title Priority Date Filing Date
IT7829022A IT7829022A0 (it) 1978-10-24 1978-10-24 Squadre e righe ad incastro.

Country Status (4)

Country Link
DE (1) DE7926155U1 (it)
FR (1) FR2439682A3 (it)
GB (1) GB2032121A (it)
IT (1) IT7829022A0 (it)

Also Published As

Publication number Publication date
FR2439682A3 (fr) 1980-05-23
DE7926155U1 (de) 1980-02-14
GB2032121A (en) 1980-04-30
FR2439682B3 (it) 1980-11-14

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