| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 10 | |
| #2 | Switzerland | 2 | |
| #3 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machine tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Towler John Maurice | 11 |
| #2 | Towler Frank Hathorn | 11 |
| #3 | Frank Hathorn Towler | 2 |
| #4 | John Maurice Towler | 2 |
| Publication | Filing date | Title |
|---|---|---|
| DE818606C | Hydraulic multi-piston pump | |
| CA417123A | Hydraulic machine tool | |
| CA248577A | Baling or bundling press | |
| CA393603A | Reciprocating ram pump | |
| CA383334A | Reciprocating ram pump | |
| CA429071A | Reciprocating ram pump | |
| CA456811A | Unloading valve for hydraulic pumps | |
| CA400180A | Rotary strainer | |
| CA450787A | Self-aligning bearing for high pressure reciprocating ram pumps | |
| CA417764A | Hydraulic valve | |
| CA423200A | Hydraulic press valve |