| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| did otis invent the elevator | 1.41 | 0.6 | 4301 | 42 |
| when did elisha otis invent the elevator | 1.55 | 1 | 4722 | 22 |
| when did otis invent the elevator | 1.94 | 0.1 | 6925 | 18 |
| why did elisha otis invent the elevator | 0.23 | 0.1 | 8889 | 80 |
| otis who founded the otis elevator company | 1.3 | 0.2 | 5966 | 53 |
| first elevator installed by otis in history | 1.55 | 0.1 | 5863 | 15 |
| who started otis elevator | 1.75 | 1 | 1133 | 45 |
| first elevator installed by otis | 0.22 | 0.3 | 3484 | 98 |
| history of otis elevator company | 1.85 | 0.4 | 3223 | 63 |
| otis of otis elevator | 0.39 | 0.5 | 2100 | 82 |
| first elevator installed by otis in america | 1.87 | 0.1 | 5174 | 29 |
| first elevator installed by otis in 1857 | 1.55 | 1 | 4019 | 27 |
| when was otis elevator founded | 1.51 | 0.5 | 3181 | 79 |
| the otis elevator company | 0.7 | 0.4 | 4031 | 86 |
| otis elevator company founder | 1.51 | 1 | 9910 | 96 |
| otis and the elevators | 1.05 | 0.4 | 3835 | 96 |
| otis elevator for sale | 0.09 | 1 | 7016 | 73 |
