Anyone know how I might access a particular patent number to gain a look at, say, a certain early LF camera design?

I had recently started with a patent number for a modern print/film washer design and found I could access drawings through one particular website.

My question is: How can I start with a company name and camera model number, for example, and then determine a patent number by which to access drawings?

Many thanks in advance, ladies and gentlemen!