| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | France | 1 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Measurement | |
| #3 | Thermal processes | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Cameras | |
| #2 | Measuring light | |
| #3 | Fluid heaters | |
| #4 | Pistons and sealings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gustave Fassin | 4 |
| #2 | Carr William F | 2 |
| #3 | Adams Curtis W | 1 |
| #4 | Miles John R | 1 |
| #5 | Summers Orran B | 1 |
| #6 | Barbier Jean Yates | 1 |
| #7 | Wuerfel Robert P | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1128420A | Electric hot water unit heater utilizing replaceable cartridge | |
| US2711914A | Multi-disk floating contact mechanical shaft seal | |
| US2364627A | Rotary slide carrier | |
| US2342681A | Focusing camera | |
| US2298107A | Camera | |
| US2298787A | Camera | |
| US2290264A | Attachment for cameras | |
| US2254878A | Photographic printer | |
| US2229284A | Photographic enlarger | |
| US2229276A | Exposure meter | |
| US2237730A | Photographic printing easel |