Thank you Gabriel and Peter, I have contacted the contact person on the second listed URL below.I'll see what happens!Regards, Jerry McCarthy, ...

Many thanks Gabriel, I have a 27608 and have been looking for the manual.   Cheers Bob Adams  

Hi Jerry,to add to what Peter wrote, you can have a look at http://logaro.cz/premiant-pleskot/Or you can try to contact the guy on this page : https://log.sustr.net/log_navody.phpIt seems he has the manual ...

Hello Jerry,Try to ask here:http://logaro.cz/LOGARO.CZ – Logaritmické pravítkoRegards,PeterAm 14.01.2021 17:44 schrieb "Jerry McCarthy via groups.io" <jerry_mccarthy_uk@...>:

Hi all, I'm wondering if anybody might have a manual for the Logarex 27608 rule? It can be in any language....Thanks for reading,Regards, Jerry McCarthy, U.K.

The following files have been uploaded to the Files area of the sliderule@groups.io group. /Scales/Slide_Rule_Scale_Equations.txt By: Rick - WA6NDR Description: These equations generate the values shown on many slide rule scales. Understanding them helps ...

Dear Fabrice and all other friends of Graphoplex,hm. Séjourné inventor of the 640 or not?  I uploadedhttps://groups.io/g/sliderule/files/scaleArrangements/Sejourne.png whichcan be found in articles from Daniel TOUSSAINT in the net. According tothis ...

Dear Fabrice, in Frensh wikipedia there is (without reference so far I've seen): ...

Hello Andreas,> Le lundi 30 novembre 2020 à 21:36:04 UTC+1, Andreas Poschinger <andreas.poschinger@...> a écrit :>> In your last email:> > "In conclusion, ...

Hello Andreas,"Savon de Marseille" is a kind of organic soap. "Slide ruly yours"Fabrice Bouillerot

Hello Gonzalo,In this article, one can read : "... these addresses [appearing in the Paris commercial directory] are accompanied by descriptions of activity. In these, slide rules are first mentioned ...

Hi Gonzalo, this remembers me in the "Ludwigseisenbahn", the first railway in ...

Hello Gabriel   Etienne tell me that this information (“De 1965 à 1972 : 130 rue de Javel") is from this article https://osgalleries.org/journal/pdf_files/11.1/V11.1P23.pdf   Information  from the ‘Paris commercial directory’   May be..  but I dont know any Tavernier-Gravet ...

Hello Andreas   Also I can understand this date, I will ask Etienne about it.   Best regards   Gonzalo  

Hello Gonzalo,There is a page on your site that goes even beyond that. As far as I can see, written by Etienne Pommel in 2005 and 2009, it states following ...

Hello Andreas   News about Tavernier -Gravet   The book “La règle à calcul’ de Dudin 1952 issue 2 , has one advertisement for Tavernier Gravet (Darmstad, Elecricien, Commercial) and one other for Graphoplex ...

Hello Andreas   The first question is when they changed to PVC and the second question is whether they used different methods on PVC.   Sorry, I cannot answer you.   About Tavernier-Gravet, there’s not ...

Hi Peter,Long time since we visited. I still have all the slide rules you sold to me in several years past. Q: are you planning to have your new book ...

Yes, thanks a lot Peter! Having it now as PDF it is much easier to look for ...

Thanks Peter!   I will put it in ‘links’ of “photocalcul”   Best regards   Gonzalo Martin