I'm searching for a US patent issued in 1946 to P.L. Robertson for a 
screwdriver or tool holder, with no insight into why I always get an 
error. Can anyone help?

Don

-- 
“It is better to be killed by a woman with a knife than by a man with a gun.”
Che Guevara

A thermometer is not liberal or conservative. - Katharine Hayhoe

Of all the tyrannies that affect mankind, tyranny in religion is the worst.
Thomas Paine

Being offended doesn't make you right.