| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 14 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Machines | |
| #3 | Furniture and games | |
| #4 | Audio-visual technology | |
| #5 | Mechanical elements | |
| #6 | Transport | |
| #7 | Consumer goods | |
| #8 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Weighing | |
| #2 | Unspecified technologies | |
| #3 | Measuring length, angles and areas | |
| #4 | Furniture for children | |
| #5 | Dairy products production | |
| #6 | Advertising | |
| #7 | Toys | |
| #8 | Vehicle parts | |
| #9 | Hand carried bags | |
| #10 | Gearing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Christopher Calvin F | 16 |
| Publication | Filing date | Title |
|---|---|---|
| US1750389A | Filling-station machine | |
| US1663440A | Measuring instrument | |
| US1541900A | Motor | |
| US1492285A | Car badge | |
| US1346178A | Wheel-rim | |
| US1381541A | Combination computing and paper-roll machine | |
| US1369164A | Churn-gearing | |
| US1218837A | Crib or cradle. | |
| US1093110A | Dinner-pail. | |
| US1067213A | Scale. | |
| US1042321A | Computing-scale. | |
| US1006062A | Computing-scale. | |
| US889441A | Railway-switch. | |
| US746461A | Scale. | |
| CA72226A | Price scales | |
| CA72047A | Price scales |