CA931350A - Laminated glass blackboards with foamed core - Google Patents
Laminated glass blackboards with foamed coreInfo
- Publication number
- CA931350A CA931350A CA078677A CA78677A CA931350A CA 931350 A CA931350 A CA 931350A CA 078677 A CA078677 A CA 078677A CA 78677 A CA78677 A CA 78677A CA 931350 A CA931350 A CA 931350A
- Authority
- CA
- Canada
- Prior art keywords
- laminated glass
- foamed core
- blackboards
- glass blackboards
- foamed
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 239000005340 laminated glass Substances 0.000 title 1
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 |
---|---|
CA931350A true CA931350A (en) | 1973-08-07 |
Family
ID=5729867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA078677A Expired CA931350A (en) | 1969-03-31 | 1970-03-31 | Laminated glass blackboards with foamed core |
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) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0033352B1 (en) * | 1980-02-01 | 1984-07-11 | 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 |
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 |
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 FR FR7011409A patent/FR2036012A1/fr not_active Withdrawn
- 1970-03-31 BE BE748235D patent/BE748235A/en unknown
- 1970-03-31 CA CA078677A patent/CA931350A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AT304299B (en) | 1972-12-27 |
BE748235A (en) | 1970-08-31 |
NL7004171A (en) | 1970-10-02 |
FR2036012A1 (en) | 1970-12-24 |
DE1916397A1 (en) | 1971-01-07 |
CH517004A (en) | 1971-12-31 |
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