Who Invented The Pinpointer?

[Valens Legacy]

In 1881, Alexander Graham Bell invented the first metal detector. As President James Garfield lay dying of an assassin's bullet, Bell hurriedly invented a crude metal detector in an unsuccessful attempt to locate the fatal slug. Bell's metal detector was an electromagnetic device he called the induction balance.

The size was of this detector was a little larger than most of the modern pin pointers today.

Then in 1925 Gerhard Fischar made the first metal to sale which went on sale in 1931, it became known as Fisher Research Laboratory.

So Bell made the original Pin Pointer.

[rvpopeye]

I used a "stud finder" back in the day. It was MY first. 

For pinpointing , as well as the studs (metal or just the screws) I needed to find to hang kitchen cabinets..... hey , I had it already and no knowledge of anything else .

As far as THE first , I'll go with the V's L above,,,  A.G. Bell .