William Callahan:
Science Fiction Technology and Ideas
Pseudonym for Raymond Z. Gallun.
Invention/Technology Source Work (Publication Date)

Corrosite Gas
A highly corrosive gas.

The Machine That Thought (1939)

Synthetic Intellect
A machine mind, created and improved by more primitive machine minds.

The Machine That Thought (1939)


(Records 1 to 2 of 2)

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