Mosaic ImmunoEngineering is a nanotechnology-based immunotherapy company developing therapeutics and vaccines to positively impact the lives of patients and their families.

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Message: Something but What
Geoff:
Can you point me to where PTSC stock was delisted in Frankfurt? There were Press Releases back several years but they seemed to be for Berlin-Bremen I think.
Also, your link goes to a page that is headed by:
PATRIOT SCIENTIFIC CORP. REGISTERED SHARES DL -,00001

Any idea what the DL means?!
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