Thread: Want Good Book about How buliding electroscoope
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Old 07-13-2016, 09:14 PM
sirnon sirnon is offline
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Join Date: Jul 2016
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Originally Posted by pablo72 View Post
not book, but here the patents to read.

http://www.geotech1.com/cgi-bin/page...le=patents.dat
Thx palbo72
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