RE: [TSCM-L] {2294} Re: Classified Patents

From: Jim Towler <jto..._at_xtra.co.nz>
Date: Fri, 18 Jan 2008 12:56:25 +1300

Many Thanks for taking the time and effort to forward the information.

Consider this a public Thank-You, as I expect others will feel the same.

Regards,
Jim Towler.

-----Original Message-----
From: TSCM-..._at_googlegroups.com [mailto:TSCM-..._at_googlegroups.com] On
Behalf Of Robert Schlesinger
Sent: Thursday, 17 January 2008 3:41 p.m.
To: TSCM-..._at_googlegroups.com; TSCM-..._at_googlegroups.com; TSCM-L
Professionals List
Subject: [TSCM-L] {2294} Re: Classified Patents
Importance: High



Dear Friends,

I received a couple of requests for further information about the
late-1920's era patent for an Enigma-like machine, as cited in my earlier
posting.

The patent is: U.S. Patent Number 1,657,411 (1928) for a "Cyphering
Machine" invented by A. Scherbius. I have attached herein a pdf copy of
the issued patent, and am hoping that it gets posted with this email.

It is somewhat more difficult to find earlier patents on the PTO's website
because the patent classification system has changed many times over the
years, and because only patents from 1976 to present are easily key-word
searchable on their website.

I hope this information is interesting and useful information to some list
members.

Best regards,
Robert Schlesinger
Rancho Cucamonga, CA
 
Received on Sat Mar 02 2024 - 00:57:23 CST