| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Yugoslavia (Serbia and Montenegro) | 4 | |
| #2 | Brazil | 2 | |
| #3 | Germany | 2 | |
| #4 | France | 2 | |
| #5 | Netherlands | 2 | |
| #6 | Argentina | 1 | |
| #7 | Austria | 1 | |
| #8 | Australia | 1 | |
| #9 | Belgium | 1 | |
| #10 | Canada | 1 | |
| #11 | Denmark | 1 | |
| #12 | Spain | 1 | |
| #13 | Italy | 1 | |
| #14 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Locks | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Meroni Giuliandrea | 4 |
| #2 | Ragazzoni F | 3 |
| #3 | Meroni G | 2 |
| Publication | Filing date | Title |
|---|---|---|
| YU34178A | Lock operated by means of push button,particularly for doors and the like | |
| DE2716698A1 | HANDLE WITH HOLLOW KNOB FOR OPERATING DOOR LOCKS ETC. | |
| YU187376A | Lock with a push button for bolt control,provided with at least one safety closing stroke of the bolt, particularly for a street-door | |
| US3869161A | Push-button operated switch, more particularly for doors and the like | |
| YU304472A | Push-button operated switch for doors and the like |