Volume 50 • Issue 8 • 1969

Full Issue

The Palimpsest, vol.50 no.8, August 1969

    Volume 50 • Issue 8 • 1969 • 433-480

    Article

    Iowa Inventive Genius Wm. J. Petersen

    • Homer L Calkin

    Volume 50 • Issue 8 • 1969 • 433-434

    Trades, Crafts, Manufacturing

    • Homer L Calkin

    Volume 50 • Issue 8 • 1969 • 435-450

    Light, Heat, Power, Water

    • Homer L Calkin

    Volume 50 • Issue 8 • 1969 • 451-457

    Transportation

    • Homer L Calkin

    Volume 50 • Issue 8 • 1969 • 458-462

    Miscellaneous Inventions

    • Homer L Calkin

    Volume 50 • Issue 8 • 1969 • 463-478

    Number of Iowa Inventors

    • Homer L Calkin

    Volume 50 • Issue 8 • 1969 • 479-480