BE520053A - - Google Patents

Info

Publication number: BE520053A
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.)

1952-05-30

Publication of BE520053A publication Critical patent/BE520053A/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
- B43L13/147—Three-dimensional devices

BE520053D 1952-05-30 BE520053A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH2807090X		1952-05-30

Publications (1)

Publication Number	Publication Date
BE520053A true BE520053A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

Family

ID=4571928

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE520053D BE520053A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)	1952-05-30

Country Status (3)

Country	Link
US (1)	US2807090A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
BE (1)	BE520053A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
FR (1)	FR1077867A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB0201538D0 (en) *	2002-01-24	2002-03-13	Lewis Robert A W	Drawing aid

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1064878A (en) *	1912-04-20	1913-06-17	Joseph D C Young	Drafting appliance.
US1346593A (en) *	1920-05-07	1920-07-13	Clercq Hendrik De	Drawing-board
BE375319A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html) *	1929-11-30
US2210895A (en) *	1940-01-06	1940-08-13	Bradley Milton Co	Drawing apparatus
US2413376A (en) *	1944-05-09	1946-12-31	Mildred Hirshstein	Drafting machine

0
- BE BE520053D patent/BE520053A/xx unknown
1953
- 1953-05-27 FR FR1077867D patent/FR1077867A/fr not_active Expired
- 1953-05-29 US US358245A patent/US2807090A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US2807090A (en)	1957-09-24
FR1077867A (fr)	1954-11-12

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