Re: tiltmeter
Rick,
You sure can wear your tongue out yapping at those corporate heads, that's for sure. They take a looooong time to decide anything, I know.
I think your best best is to go direct to the tractor owners, and also via the dealer network. It may take YEARS before you strike a real OEM deal. And when you do, you'll have to gear up production, hire more workers, get loans, etc., etc. They will then wind up dictating terms, prices and profits to you, and often just rip off your idea after a year or two. If they see hundreds, then thousands of owners putting Tiltmeters(TM) on, and saving accidents, they will pursue you, in the end, and you can negotiate from a much stronger position.
My experience is that the BEST marketing results are always from PR --- press releases, stories, etc. It takes a little effort, but a one or two page "article", based upon a press release and interview (at virtually "no cost" to you) in a prominent magazine can be worth $10-20,000 (if you had to buy space ads (which most small businesses could never afford).
Jay Conrad Levinson (do a search on Amazon) has written several phenomenal books on these kinds of "guerilla marketing" techniques. Buy one of his books for $20 and I think you'll explode your sales.
I know the struggle gets you down from time to time, but --- Be persistent!
BobT.
A Indiana Boy