GB909530A - Blackboard rubber cleaner - Google Patents
Blackboard rubber cleanerInfo
- Publication number
- GB909530A GB909530A GB2232860A GB2232860A GB909530A GB 909530 A GB909530 A GB 909530A GB 2232860 A GB2232860 A GB 2232860A GB 2232860 A GB2232860 A GB 2232860A GB 909530 A GB909530 A GB 909530A
- Authority
- GB
- United Kingdom
- Prior art keywords
- box
- blackboard
- rubber
- wire mesh
- rubber cleaner
- 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
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
- B43L21/00—Blackboard or slate cleaning devices
- B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
909,530. Blackboard rubber cleaners. JOBDAN, F. W. Dec. 19, 1960 [June 25, 1960], No. 22328/60. Class 146 (2). A blackboard rubber cleaner comprises a box having a piece of wire mesh secured across the open top thereof. The rubber is cleaned by rubbing it on the wire mesh and the chalk dust falls into the box. The box has a sliding bottom to facilitate emptying and a grooved shelf mounted on one side for the reception of pieces of chalk.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2232860A GB909530A (en) | 1960-06-25 | 1960-06-25 | Blackboard rubber cleaner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2232860A GB909530A (en) | 1960-06-25 | 1960-06-25 | Blackboard rubber cleaner |
Publications (1)
Publication Number | Publication Date |
---|---|
GB909530A true GB909530A (en) | 1962-10-31 |
Family
ID=10177610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2232860A Expired GB909530A (en) | 1960-06-25 | 1960-06-25 | Blackboard rubber cleaner |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB909530A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986004302A1 (en) * | 1985-01-22 | 1986-07-31 | Gordon Sydney Jensen | Dust extractors |
GB2424246A (en) * | 2005-03-17 | 2006-09-20 | Colin Ray Ramsey | Door Stop |
-
1960
- 1960-06-25 GB GB2232860A patent/GB909530A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986004302A1 (en) * | 1985-01-22 | 1986-07-31 | Gordon Sydney Jensen | Dust extractors |
GB2424246A (en) * | 2005-03-17 | 2006-09-20 | Colin Ray Ramsey | Door Stop |
GB2424246B (en) * | 2005-03-17 | 2008-06-04 | Colin Ray Ramsey | Improvements in door stops |
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