KR100877692B1 - 황토칠판 및 황토칠판용 지우개 - Google Patents
황토칠판 및 황토칠판용 지우개 Download PDFInfo
- Publication number
- KR100877692B1 KR100877692B1 KR1020070080033A KR20070080033A KR100877692B1 KR 100877692 B1 KR100877692 B1 KR 100877692B1 KR 1020070080033 A KR1020070080033 A KR 1020070080033A KR 20070080033 A KR20070080033 A KR 20070080033A KR 100877692 B1 KR100877692 B1 KR 100877692B1
- Authority
- KR
- South Korea
- Prior art keywords
- blackboard
- ocher
- eraser
- present
- heating element
- Prior art date
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Classifications
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- 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
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- 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
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- 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
- B43L19/00—Erasers, rubbers, or erasing devices; Holders therefor
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/10—Clay
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
Description
Claims (4)
- 칠판에 있어서,황토를 주재료로 판재형태로 가공한 황토칠판(1)과;황토칠판(1)의 전면이 노출되는 케이스(2)를 구성한 것을 특징으로 하는 황토칠판.
- 청구항 1에 있어서황토칠판(1)의 강도 보강을 위해서 내부에 그물망심재(5)를 구성한 것을 특징으로 하는 황토칠판.
- 청구항 1 또는 청구항 2에 있어서,황토칠판(1)이 발열할 수 있도록 내부에 발열체(6)를 구성한 것을 특징으로 하는 황토칠판.
- 황토칠판(1)의 표면에 열이 가해지도록 열판(9)이 부착된 지우개(8)를 구성한 것을 특징으로 하는 황토칠판용 지우개
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070080033A KR100877692B1 (ko) | 2007-08-09 | 2007-08-09 | 황토칠판 및 황토칠판용 지우개 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070080033A KR100877692B1 (ko) | 2007-08-09 | 2007-08-09 | 황토칠판 및 황토칠판용 지우개 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20070088431A KR20070088431A (ko) | 2007-08-29 |
KR100877692B1 true KR100877692B1 (ko) | 2009-01-08 |
Family
ID=38614003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020070080033A KR100877692B1 (ko) | 2007-08-09 | 2007-08-09 | 황토칠판 및 황토칠판용 지우개 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100877692B1 (ko) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR950024891A (ko) * | 1994-02-16 | 1995-09-15 | 이철규 | 마커펜 사용이 가능한 세라믹 칠판 및 그 제조방법 |
KR200177024Y1 (ko) | 1999-10-14 | 2000-04-15 | 박기원 | 칠판 |
KR200405740Y1 (ko) | 2005-10-26 | 2006-01-10 | 유유자 | 조립식 황토 온열패널 |
-
2007
- 2007-08-09 KR KR1020070080033A patent/KR100877692B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR950024891A (ko) * | 1994-02-16 | 1995-09-15 | 이철규 | 마커펜 사용이 가능한 세라믹 칠판 및 그 제조방법 |
KR200177024Y1 (ko) | 1999-10-14 | 2000-04-15 | 박기원 | 칠판 |
KR200405740Y1 (ko) | 2005-10-26 | 2006-01-10 | 유유자 | 조립식 황토 온열패널 |
Also Published As
Publication number | Publication date |
---|---|
KR20070088431A (ko) | 2007-08-29 |
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