| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Canada | 2 | |
| #3 | United Kingdom | 2 | |
| #4 | Argentina | 1 | |
| #5 | Belgium | 1 | |
| #6 | Switzerland | 1 | |
| #7 | France | 1 | |
| #8 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Finishing work on buildings | |
| #2 | Nails | |
| #3 | Unspecified technologies | |
| #4 | Swimming pools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Murdock Robert H | 4 |
| #2 | Murdock R | 3 |
| #3 | Murdock Robert Hamilton | 2 |
| #4 | Robert Hamilton Murdock | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3756567A | Longitudinally adjustable interlocking railing construction | |
| CA938481A | Interlocking railing construction | |
| US3620505A | Railing construction | |
| GB1294529A | Interlocking railing construction | |
| GB1294528A | Interlocking railing construction | |
| US3608938A | Interlocking railing construction | |
| US3498589A | Interlocking railing construction | |
| CA877038A | Interlocking railing construction |