[modeleng] Re: Unknown thread

  • From: Pcx <pierre.courbouleix@xxxxxxxxxx>
  • To: modeleng@xxxxxxxxxxxxx
  • Date: Thu, 14 Oct 2004 22:07:15 +0200 (CEST)

Hi,
Recently I found (at an ANTIQUES SALE) an old picture of a scientific 
instrument(optical) and I noticed a thread marked '20-Thury' . Do you know what 
is this type of thread ? 
Regards.
PIerre

pierre.courbouleix@xxxxxxxxxx 

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