Bruno stairlift can be installed in the house by yourself, but it is risky. You should get it installed professionally by sending a request on the Bruno website.
One can purchase a stair lift for a household from the Stannah stairlift group. Visit their official webpage. There are other stairlift providers on the internet too.
If you have only one curved side, you could be a semi-circle or a crescent shape.
A Stannah stairlift enables people with disabilities or other physical limitations to get up the stairs almost effortlessly. Therefore, people that regularly have trouble climbing stairs benefit from purchasing one.
It could be a cylinder
One can inquire about the Mormon religion by visiting the Mormon Topics website. There one can ask questions and inquire about various aspects of the religion.
A person could inquire about employment at an ITT corporation by going to numerous job sites. Monster and indeed are good sites to start looking at. Also if a person would know any corporations that have an ITT sector they could personally go to the place and inquire about jobs.
A paraboloid.
A sphere has just one curved face.
There are a number of places one could inquire about the services of a male massage therapist. A good website to use is 'Masseur Finder' where one can enter their zip code to find all male massage therapists in that area.
There is a Wikipedia page on aqueducts, which may be good for a start. Alternatively one could go to the local library and inquire about books they might have on the topic.
The noun form for the verb to inquire is inquirer, one who inquires. Inquiry is another noun form.