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Leonard, Jonathan Norton, 1903-1975.

Tools of tomorrow / [by] Jonathan Norton Leonard. - x, 310 pages : plates, diagram ; 22 cm.

Title on two leaves.

LCCN: 35005845

Subjects--Topical Terms:
Technology.
Machinery.
Civilization--History.

LC Class. No.: T47 / .L4

Dewey Class. No.: 621.9