The Typewriter Cont… Sarah M. Hawley Emma D. Mills Martha F. Cooke
{"Image DocumentName": "The Typewriter Cont\u2026 Sarah M. Hawley Emma D. Mills Martha F. Cooke", "Image ImageDescription": "Patented a paper-feeding mechanism for typewriting machines (1907) Emma D. Mills. Devised her own typewriter with several innovative mechanisms. Martha F. Cooke. Typewriter key-locking attachment (1940) Beulah Henry (at least 14 related patents) Supplemental Ribbon Attachment. Duplicating Attachment. Silent Typewriter. Key operated machines.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}