Bigwull, ...... you need to change your "
signature" line.
It is not befitting of your latest postings.
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HA, the second that I read the word "petri" in the 1st cited link I'se said ta myself, ...... "damn, I shudda thought of that".
Many years ago I autoclaved quite a few of them in my bacteriology class. Of course we didn't use a brass container to do it in. But I can visualize why a large labratory would require such a device.