| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Civil engineering | |
| #3 | Control | |
| #4 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Locks | |
| #3 | Safes | |
| #4 | Unspecified technologies | |
| #5 | Office furniture | |
| #6 | Alarm systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Miller William C | 11 |
| #2 | Abbott Albert L | 3 |
| #3 | Hawkins Paul M | 2 |
| #4 | Earl Boughton | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2284531A | Ledger safe and the like | |
| US2162442A | Delayed control time lock | |
| US2105983A | Money drawer and locker | |
| US2062067A | Protective device for safes | |
| US2029272A | Delayed control time lock | |
| US2039019A | Delayed control timelock guard | |
| US2020865A | Money drawer and safety locker | |
| US2036767A | Delayed control timelock | |
| US1998201A | Delayed control timelock | |
| US2003302A | Safe structure | |
| US1990300A | Receptacle |