| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 3 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Electrical machinery and energy | |
| #3 | Machines | |
| #4 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Hand-held cutting tools | |
| #2 | Unspecified technologies | |
| #3 | Dynamo-electric machines | |
| #4 | Buttons, pins and buckles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Martin Angus A | 13 |
| #2 | Johnston Richard E | 1 |
| #3 | Bolger Vincent A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2265384A | Hair cutting instrument | |
| US2243878A | Motor | |
| US2265383A | Hair clipping instrument | |
| US2265382A | Hair clipping instrument | |
| US2217760A | Hair cutting instrument | |
| US2222317A | Hair cutting instrument | |
| US2189672A | Latch | |
| US2175060A | Safetypin | |
| US2143276A | Safety razor | |
| US1951552A | Safety razor | |
| CA400055A | Hair cutting instrument | |
| CA309141A | Bath tub seat | |
| CA405596A | Hair cutting instrument |