BE487847A - - Google Patents

Info

Publication number: BE487847A
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.)

1948-03-15

Publication of BE487847A publication Critical patent/BE487847A/xx

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

BE487847D 1948-03-15 BE487847A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE271961X		1948-03-15

Publications (1)

Publication Number	Publication Date
BE487847A true BE487847A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=20306781

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE487847D BE487847A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)	1948-03-15

Country Status (5)

Country	Link
BE (1)	BE487847A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1)	CH271961A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1)	DE913239C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1)	FR982895A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1)	GB671669A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

0
- BE BE487847D patent/BE487847A/xx unknown
1949
- 1949-03-12 FR FR982895D patent/FR982895A/fr not_active Expired
- 1949-03-14 GB GB6906/49A patent/GB671669A/en not_active Expired
- 1949-03-14 CH CH271961D patent/CH271961A/de unknown
- 1949-03-15 DE DEA14657A patent/DE913239C/de not_active Expired

Also Published As

Publication number	Publication date
CH271961A (de)	1950-11-30
GB671669A (en)	1952-05-07
DE913239C (de)	1954-06-10
FR982895A (fr)	1951-06-15

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