CH54828A - Blackboard - Google Patents
BlackboardInfo
- Publication number
- CH54828A CH54828A CH54828A CH54828DA CH54828A CH 54828 A CH54828 A CH 54828A CH 54828 A CH54828 A CH 54828A CH 54828D A CH54828D A CH 54828DA CH 54828 A CH54828 A CH 54828A
- Authority
- CH
- Switzerland
- Prior art keywords
- blackboard
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH54828T | 1911-12-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH54828A true CH54828A (en) | 1912-06-17 |
Family
ID=4294325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH54828A CH54828A (en) | 1911-12-18 | 1911-12-18 | Blackboard |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH54828A (en) |
-
1911
- 1911-12-18 CH CH54828A patent/CH54828A/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH54828A (en) | Blackboard | |
FR430323A (en) | Inkwell | |
CH54344A (en) | Skittles | |
FR433853A (en) | Pencil case | |
FR438010A (en) | Inkwell | |
FR435803A (en) | Inkwell | |
CH58008A (en) | Inkwell | |
CH55959A (en) | Inkwell | |
CH56160A (en) | Penholder | |
CH57784A (en) | Drawing pen | |
FI4409A (en) | Värme- och vätskeregulator | |
FI4364A (en) | Mynträkningsapparat | |
FI4346A (en) | Barkningsverktyg | |
FI4335A (en) | Remskivor | |
FI4327A (en) | Ekonomisk smörjapparat | |
FI4326A (en) | Snösmältningsapparat | |
FI4323A (en) | Smärgelkvarnsten | |
FI4304A (en) | Mjölkningsmaskin | |
FI4302A (en) | Rullartad skåpstängning | |
FI4282A (en) | Propellerharv | |
FI4280A (en) | Ljus- genomsläppande Järnbeton-construction | |
CH58455A (en) | Stereo-cinematograph | |
CH57316A (en) | Setship | |
CH56822A (en) | puttee | |
CH54671A (en) | Rockraffer |