🚀 go-pugleaf

I have a laser-system called "AGL" (Automatic Grade Light)  my problem
is that I don't know the proper way to use it.
Naturally it's fun to play around with the laser beam, (especialy if foggy :-)
byt I would like to use it for some REAL measurements, distance etc.
I have no information what so ever on the thing, so anything would help.
To make things slightly easier there is a smal aluminium sign attached
to the side of the measurement-unit which say:

		 __________________________________________
		|o ______   _____    _                    o|
		| |____  | /  _  |  | |    MODEL S-3 52    |
		|      | | | | | |  | |                    |
		|  ____| | | |_| |  | |                    |
		| / __   | \___  |  | |    PAT. No. 3279070|
		| ||  |  |     | |  | |                    |
		| ||__/  |  ___| |  | |____                |
		| \___/|_| |_____/  |______|               |
		|   	                                   |
		| automatic grade light                    |
		|                                          |
		|          BLOUNT & GEORGE, INC.           |
		|                                          |
		|            Jacksonville, Ark.            |
		|                                          |
		| S.N. 0153845                             |
		|o________________________________________o|

So I would appreciate any information on the laser-system.
Thanks.

PS, is that company still around ?  DS.

/Ingvar