Shares of some top machinery companies are down at 10 a.m.: Caterpillar fell $.21 or .3 percent, to $82.23. Deere fell $.96 or 1.2 percent, to $77.83. Manitowoc fell $.05 or .4 percent, to

$11.54. Terex fell $.16 or .6 percent, to $25.07.