| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | Switzerland | 3 | |
| #3 | France | 3 | |
| #4 | Italy | 3 | |
| #5 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Dynamo-electric machines | |
| #2 | Hand-held nailing tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Appt Erich | 4 |
| #2 | Erich Appt | 3 |
| Publication | Filing date | Title |
|---|---|---|
| DE2330035A1 | Coil winding pressing inserter into motor stator slots - uses radially expanding insertion jaw segments and slot wedges | |
| GB1355137A | Press tool for coil end turns of dynamo-electric machines |