File:Patent-GB-171154.pdf
Jump to navigation
Jump to search
 Size of this JPG preview of this PDF file: 443 × 599 pixels. Other resolution: 177 × 240 pixels. |
Original file (1,295 × 1,752 pixels, file size: 466 KB, MIME type: application/pdf, 6 pages)
Dettagli
| Inventor |
William P. De Witt |
|---|---|
| Assignee |
William Price De Witt |
| Country |
GB |
| Application N° |
23159/20 |
| Application Date |
1920-08-06 |
| Patent N° |
171154 |
| Brevettato |
1921-11-07 |
| Priorità |
1920-04-19 |
| Brand | |
| Title |
Improvements in pencil holders |
| Description |
Matita meccanica |
Riferimenti esterni
Informazioni
Brevetto per una matita meccanica. Stessa invenzione di nº US-1472962. Stessa invenzione di nº FR-526035. Stessa invenzione di nº DE-349147. Priorità dal brevetto statunitense.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:00, 18 March 2014 |  | 1,295 × 1,752, 6 pages (466 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=William P. De Witt |Assignee=William Price De Witt |Country=GB |ApplicationNum=23159/20 |ApplicationDate=1920-08-06 |PatentNum=171154 |PatentDate=1921-11-07 |PriorityDate=1920-04-19 |Titolo=Improvements in pencil holders |Marca=D... |
You cannot overwrite this file.
File usage
There are no pages that use this file.