| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 5 | |
| #2 | United Kingdom | 3 | |
| #3 | United States | 2 | |
| #4 | Germany | 1 | |
| #5 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Punching metal | |
| #2 | Presses | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Achler Howard S | 7 |
| #2 | Kaufmann Harold | 6 |
| #3 | Lerner Herman H | 3 |
| #4 | Harold Kaufmann | 1 |
| #5 | S Achler Howard | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1209800A | Spring-stripper for use with punches, dies and the like | |
| GB1190884A | Rolling Machine | |
| GB1212009A | Two-roll machine for rolling sheet metal | |
| US3304757A | Machine for rolling arcuate sheet metal shapes | |
| US3276239A | Press brake die retainer | |
| CA806982A | Open end rolling machine | |
| CA764755A | Press brake die retainer | |
| CA818830A | Open end rolling machine | |
| CA767956A | Machine for rolling arcuate sheet metal shapes | |
| CA841969A | Draw die |