| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 17 | |
| #2 | Canada | 7 | |
| #3 | Austria | 1 | |
| #4 | Switzerland | 1 | |
| #5 | Denmark | 1 | |
| #6 | Spain | 1 | |
| #7 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Machines | |
| #3 | Transport | |
| #4 | Measurement | |
| #5 | Furniture and games | |
| #6 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Separating solids | |
| #2 | Milling | |
| #3 | Vehicle transmission mounting | |
| #4 | Domestic washing | |
| #5 | Separation | |
| #6 | Vehicle parts | |
| #7 | Planting | |
| #8 | Measuring volume |
| # | Name | Total Patents |
|---|---|---|
| #1 | Fraser George Holt | 26 |
| #2 | Farnsworth Prendergast George | 1 |
| #3 | George Holt Fraser | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1317015A | Separator. | |
| US1220156A | Crushing machinery. | |
| US1220157A | Crushing-machine. | |
| US1202375A | Screening apparatus. | |
| US1202376A | Feed-regulator for screening and other apparatus. | |
| US1202374A | Screening apparatus. | |
| US1202378A | Screening apparatus. | |
| US1165868A | Separator. | |
| US1165866A | Separator. | |
| US1165870A | Sifter or screen. | |
| US1165867A | Separator. | |
| US1165869A | Separator. | |
| US1202377A | Screening apparatus. | |
| US1259008A | Dust-filter and the like. | |
| US1165865A | Separator. | |
| US1183808A | Crushing-machine. | |
| CA108336A | Rock crusher | |
| GB190720395A | Improvements in Crushing Machines. | |
| US772654A | Safety device for vehicles or other apparatus. | |
| CA56256A | Cigar and ash holder and receiver and like articles |