Five of the six have been answered correctly, still looking to confirm the
last one:
442. Easy-out
443. Raising hammer, for metal work
444. Shotgun shell reloader
445. Knife eraser
446. Ice cube maker
447. Haven't yet verified any of the guesses for this one.
A little more info can be found on the answer page:
http://pzphotosan80.blogspot.com/
Rob