On 5/19/2012 10:22 PM, Hal Murray wrote:
Another gadget that I saw was a "two color" laser ranging setup. It was good
for 1 mm over 5 km. (ballpark)
I think I saw that too. Pretty old; mid-80's probably. The number
switches caught my attention. Made me try to figure out the vintage. My
guess was late 70's but history indicated maybe a little newer than that.
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