| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 6 | |
| #2 | United Kingdom | 6 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Textiles and paper | |
| #2 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Copy machines | |
| #2 | Printing processes | |
| #3 | Horticulture | |
| #4 | Printing plates |
| # | Name | Total Patents |
|---|---|---|
| #1 | Friedrich May | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2021736A | Pruning device | |
| GB347652A | Improvements in stencil sheets | |
| GB201908A | Improvements in damping mediums for copying-paper | |
| GB196292A | Improvements in or relating to copying machines | |
| GB191043A | Improvements in or relating to cutting devices for copying machines | |
| GB195586A | Improvements in or relating to copying-paper | |
| GB187574A | Improvements in or relating to copying machines |