| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 2 | |
| #2 | Canada | 2 | |
| #3 | Germany | 2 | |
| #4 | France | 2 | |
| #5 | United Kingdom | 2 | |
| #6 | Switzerland | 1 | |
| #7 | United States | 1 |
| # | Technology | |
|---|---|---|
| #1 | Cameras | |
| #2 | Unspecified technologies | |
| #3 | Processing photographic materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mclaughlin William F | 1 |
| #2 | Company Inc Film Inspection Ma | 1 |
| #3 | Maxwell Vidaver | 1 |
| #4 | Swing Alfred J | 1 |
| #5 | Vidaver Maxwell | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB283351A | Kinematograph film testing, re-winding and measuring apparatus | |
| DE479133C | Automatic device for checking film strips for cracks or the like. | |
| DE398672C | Device for checking cinematographic picture tapes | |
| GB218384A | An instrument for testing cinematograph films or like strips | |
| US1604138A | Testing instrument | |
| CA280752A | Film inspection machine | |
| CA237233A | Film testing instrument |