"I knew—I knew what was coming, when we bid on the Byfleet’s keel—
They piddled and piffled with iron: I’d given my orders for steel!
Steel and the first expansions. It paid, I tell you, it paid,
When we came with our nine-knot freighters and collared the long-run trade!
And they asked me how I did it, and I gave ’em the Scripture text,
“You keep your light so shining a little in front o’ the next!”
They copied all they could follow, but they couldn’t copy my mind,
And I left ’em sweating and stealing a year and a half behind."
The "Mary Gloster" - Rudyard Kipling
(
http://www.poetryloverspage.com/poet...y_gloster.html)
Today all the blueprint details would be guarded by army of lawyers, for at least 20 years.