There was a patent filed by Peter Robertson in 1944, issued 1950. Perhaps this
is the one you are seeking.

https://patentimages.storage.googleapis.com/ef/b4/8d/b5ad9c56a99a33/US2
515839-drawings-page-1.png">https://patentimages.storage.googleapis.com/ef/b4/8d
/b5ad9c56a99a33/US2515839-drawings-page-1.png

Bob PageIn da U.P. of Michigan


    On Tuesday, April 9, 2019, 3:17:07 AM EDT, Don Schwartz  wrote:  
 
 
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