Hello: If there are patent numbers, you can probably do some research on US patent database. You can't search the old stuff by keyword, because the patent pages are saved as .tiff files.
I had no luck with this aproach myself with either the Fairchild cameras/shutters or the Graphic focal plane shutter (the former had no patent numbers, and I couldn't find anyone who could check their camera for patent numbers for me (or forgot to get back to me). Murray _______________________________________________ Cameramakers mailing list [EMAIL PROTECTED] http://rmp.opusis.com/mailman/listinfo/cameramakers
