| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 11 | |
| #2 | Austria | 7 | |
| #3 | United Kingdom | 5 | |
| #4 | Denmark | 3 | |
| #5 | Switzerland | 1 | |
| #6 | Spain | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Making screws |
| # | Name | Total Patents |
|---|---|---|
| #1 | Anderson Harold Napier | 26 |
| #2 | Harold Napier Anderson | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB191510369A | Improvements relating to Gear Rolling Machines. | |
| GB191419199A | Improvements in and relating to the Rolling of Gear Teeth. | |
| CA182778A | Gear | |
| CA145864A | Gear rolling machine | |
| GB191218205A | Improvements in Machines for Forming Gear Teeth by Rolling. | |
| GB191100557A | Improvements in Machines for Forming Gear Teeth by Rolling. | |
| CA140372A | Gear rolling machine | |
| CA201966A | Device for chucking blanks in gear rolling machine | |
| CA205218A | Gear rolling machine | |
| CA201965A | Gear rolling machine | |
| CA201964A | Gear rolling machine | |
| CA209814A | Forged shrouded gear | |
| CA201963A | Gear rolling machine | |
| CA202153A | Process of making gears | |
| CA209815A | Herring-bone gear |