| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 |
| # | Industry | |
|---|---|---|
| #1 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Electromechanical clocks | |
| #2 | Machines for making clocks |
| # | Name | Total Patents |
|---|---|---|
| #1 | Poole Maryline B | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US2088973A | Electric clock | |
| US2019769A | Apparatus for timing balances | |
| US2086391A | Apparatus for timing balances | |
| US2077008A | Apparatus for timing balances | |
| US2086390A | Electric clock | |
| US2070239A | Electric clock | |
| US2025894A | Electric clock | |
| US2070238A | Electric clock | |
| US2019768A | Electric clock | |
| US2033899A | Electric clock | |
| US2035759A | Method and apparatus for regulating clocks | |
| US2088972A | Electric clock | |
| US2077007A | Electric clock |