P410: Difference between revisions

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==Links==
==Links==
* [https://www.freepatentsonline.com/2883619.html US Patent 2883619, ''Electrical Probe'']. [[John Kobbe]] and [[Bill Polits]]. Filed February 1956. ([https://patentimages.storage.googleapis.com/pdfs/US2883619.pdf PDF])
* [[Patent US 2883619A| US Patent 2883619, ''Electrical Probe'']]. [[John Kobbe]] and [[Bill Polits]]. Filed February 1956. ([https://patentimages.storage.googleapis.com/pdfs/US2883619.pdf PDF])


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