CH517004A - Method of making a school blackboard - Google Patents
Method of making a school blackboardInfo
- Publication number
- CH517004A CH517004A CH425170A CH425170A CH517004A CH 517004 A CH517004 A CH 517004A CH 425170 A CH425170 A CH 425170A CH 425170 A CH425170 A CH 425170A CH 517004 A CH517004 A CH 517004A
- Authority
- CH
- Switzerland
- Prior art keywords
- making
- school blackboard
- blackboard
- school
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
- C09J5/08—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers using foamed adhesives
-
- 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
- B43L1/06—Blackboards rigid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Drawing Aids And Blackboards (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691916397 DE1916397A1 (en) | 1969-03-31 | 1969-03-31 | school board |
Publications (1)
Publication Number | Publication Date |
---|---|
CH517004A true CH517004A (en) | 1971-12-31 |
Family
ID=5729867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH425170A CH517004A (en) | 1969-03-31 | 1970-03-20 | Method of making a school blackboard |
Country Status (7)
Country | Link |
---|---|
AT (1) | AT304299B (en) |
BE (1) | BE748235A (en) |
CA (1) | CA931350A (en) |
CH (1) | CH517004A (en) |
DE (1) | DE1916397A1 (en) |
FR (1) | FR2036012A1 (en) |
NL (1) | NL7004171A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006024998A1 (en) * | 2006-05-30 | 2007-12-06 | Jakob Maul Gmbh | Whiteboard, pin board, magnet board, moderator board or partition wall, comprises a core having two-component foam and a surface material arranged on a side of the core, and a frame element arranged at a narrow side of the board |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3068483D1 (en) * | 1980-02-01 | 1984-08-16 | Weyel Kg | Writing board, in particular large wallboard |
DE3023067A1 (en) * | 1980-06-20 | 1982-01-14 | Hohenloher Spezialmöbelwerk Schaffitzel GmbH + Co, 7110 Öhringen | Large sized blackboard with middle writing surface - has centre boards with circumferential plastics edges protruding outwards and rounded |
BE1010840A3 (en) * | 1997-01-10 | 1999-02-02 | Vanerum Naamloze Vennootschap | Writing board |
FR2839922B1 (en) * | 2002-05-23 | 2004-09-24 | Dechefer Ets | DRY ERASABLE BOARD AND MANUFACTURING METHOD THEREOF |
CH699483A1 (en) * | 2008-09-01 | 2010-03-15 | Troesch Glas Ag | Re-writable ferromagnetic device e.g. writing board marking device, for presentation and teaching purpose in e.g. school, has front glass plate whose thickness is made to be small such that attractive force stays at active surface |
-
1969
- 1969-03-31 DE DE19691916397 patent/DE1916397A1/en active Pending
-
1970
- 1970-03-19 AT AT256470A patent/AT304299B/en not_active IP Right Cessation
- 1970-03-20 CH CH425170A patent/CH517004A/en not_active IP Right Cessation
- 1970-03-24 NL NL7004171A patent/NL7004171A/xx unknown
- 1970-03-31 BE BE748235D patent/BE748235A/en unknown
- 1970-03-31 CA CA078677A patent/CA931350A/en not_active Expired
- 1970-03-31 FR FR7011409A patent/FR2036012A1/fr not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006024998A1 (en) * | 2006-05-30 | 2007-12-06 | Jakob Maul Gmbh | Whiteboard, pin board, magnet board, moderator board or partition wall, comprises a core having two-component foam and a surface material arranged on a side of the core, and a frame element arranged at a narrow side of the board |
Also Published As
Publication number | Publication date |
---|---|
CA931350A (en) | 1973-08-07 |
NL7004171A (en) | 1970-10-02 |
DE1916397A1 (en) | 1971-01-07 |
FR2036012A1 (en) | 1970-12-24 |
BE748235A (en) | 1970-08-31 |
AT304299B (en) | 1972-12-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |