Re : Levasseur Whistle

Jean-Pierre Lentin ( jplentin@club-internet.fr )
Wed, 23 Jun 1999 10:11:48 +0200 (MET DST)

Hello Martin & all

Martin wrote :
> Im looking for the actual patent to the Gavreau infrasound weapon.
> Everywhere it says it should be available in France, however it doesn't
> come up on the patent server. Any ideas anyone?

About ten years ago, I searched the INPI (French patent office) for this
patent, after reading it was available there in Lyall Watson's book
"Supernature". I did not find it, although there was numerous patents by
Valdimir Gavreau (some are under his old name, Gawronski - he changed his
name during WW2, for obvious reasons).

Then I tracked down his former collaborators (Gavreau died in the 1970's)
and finally I had on the phone Henri Saul, who co-signed most of the patents
and was now in retirement in the South of France. Saul laughed out loud when
I read him Watson's claims (that a patented "infra-sound cannon" was
developed and patented, that the first test killed the operators, that "all
their internal organs were liquefied"...). According to Saul, only the first
part of Watson's account was real : in the 1950's, in Marseille, Gavreau
investigated weird nauseas and ill effects in his lab's upper office and
traced it to the 7 Hz resonance from a large ventilator on the roof. The
team (a state-founded physics lab specializing in sound and acoustics) did a
few experiments, they were contacted by the police and army for weapon
potential, but they quickly realized that infra-sound was non-directional,
impossible to focus and would be as dangerous to the operators as to the
target. Saul was positive that all matters ended there and no prototype was
ever developed.

Now, last year, I read the chapter on Gavreau in Gerry Vassilatos "Lost
science". The account is much more precise than Watson's, and tells of
several prototypes and testings, some of them destroying concrete buildings
(but no deaths). Did Saul lie to me in the name of military secrecy ? I've
been meaning to send a translation of Vassilatos' claims to Saul (if he's
still alive) and hear what he thinks about it. I'll search him on the phone
today and will report about it. Stay in tune...

One thing is sure, though. There exists no Gavreau patent for an infrasound
cannon.
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Jean-Pierre Lentin
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