CH53454A - Writing board - Google Patents
Writing boardInfo
- Publication number
- CH53454A CH53454A CH53454A CH53454DA CH53454A CH 53454 A CH53454 A CH 53454A CH 53454 A CH53454 A CH 53454A CH 53454D A CH53454D A CH 53454DA CH 53454 A CH53454 A CH 53454A
- Authority
- CH
- Switzerland
- Prior art keywords
- writing board
- writing
- board
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH53454T | 1911-10-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH53454A true CH53454A (en) | 1912-02-16 |
Family
ID=4292014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH53454A CH53454A (en) | 1911-10-07 | 1911-10-07 | Writing board |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH53454A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2452235A (en) * | 1946-03-02 | 1948-10-26 | Milprint Inc | Blackboard |
-
1911
- 1911-10-07 CH CH53454A patent/CH53454A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2452235A (en) * | 1946-03-02 | 1948-10-26 | Milprint Inc | Blackboard |
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