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AMES OAMI Mechanical Training Manual for Standard and Portable Typewriters
By: Clarence Leroy Jones
In 3 Volumes plus Addendum - Published 1945

AMES OAMI Mechanical Training Manual for Standard Typewriter Repair

Supplement: Underwood Segment Shift

"On Feet" Platen Paralell

Universal Bar

Escapement Action

Shifting Mechanism

Touch Tuning Ribbon U-Bar

Ribbon Feed Bichrome