| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 53 | |
| #2 | United Kingdom | 2 | |
| #3 | Canada | 1 | |
| #4 | Switzerland | 1 |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mueller John | 12 |
| #2 | Lasker William Walter | 8 |
| #3 | Becker Paul A | 8 |
| #4 | Hoeser Manfred | 3 |
| #5 | Schilling Gerhard | 2 |
| #6 | Boehnke Klaus | 2 |
| #7 | Dreher Elmer Harvey | 2 |
| #8 | Kaiser Hermann | 2 |
| #9 | Kehr Leonhard | 1 |
| #10 | Jun Frederick Miller | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1282118A | A clock with a detachable short time interval indicator | |
| DE1189300B | Scanning device for punch cards | |
| DE1187050B | Device for transporting punch cards and other recording media | |
| CA667459A | Mark sensing punch |