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...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.

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Class 400/22 - Underscoring concurrently with character imprinting


Subclass of Class 400 - Typewriting machines
Definition: Subject matter wherein the typewriter is provided with type-face* elements
No. of patents: 11
Last issue date: 03/26/1991


NumberTitleIssue Date
5002409Printer with underlining function
A printer having an underlining function includes an underline position memory. Each bit of the underline position memory is allotted to each printable position, and contents of bits corresponding to the underline positions are inverted....
03/26/1991
4887226Dot printing device capable of printing underline together with characters
A dot printing device includes a head having a plurality of dot printing elements, a head driver for selectively energizing the dot printing elements according to dot data, a character generator, and data processing unit which causes designated character ...
12/12/1989
4836712Electronic word processing with sequential character attribute compounding
Electronic word processing is carried out with a keyboard including character keys and attribute keys. Attribute codes input by the attribute keys are stored in an attribute code memory in accordance with the sequence of attribute key operation. An attrib...
06/06/1989
4749289Printing device for attribute printing
In a printer for printing an attributed character by printing a character part and an attribute part separately, the invented printer or typewriter is so constructed that only an attribute part, e.g., an underline part or a bold face part, is printed in c...
06/07/1988
4650348Method of dot-printing underlines
A method of dot-printing underline or the like employing a print head and power source with relatively small capacity. The reciprocation of the print head is divided into a plurality of travels by the command of divisional print so that the required under...
03/17/1987
4566813Dot-matrix print controller
A dot-matrix print controller having a dot pattern generating means for generating a dot pattern to be printed and a means for supplying current pulses to a dot-matrix print head in accordance with an output of said dot pattern generating means, said cont...
01/28/1986
4410286Printing complex characters
There is disclosed an apparatus for and a method of printing complex characters using a high speed bidirectional on-the-fly printer. In accordance with the present method complex characters are printed in at least two steps. Once the first portion of a ch...
10/18/1983
4405244Typewriter operating attachment providing for dead key operations
A baseplate attachment (12) having actuator elements which extend into an electrical typewriter (13) to initiate operations in response to signals indicative of successive characters to be printed further provides for dead key print operations when desira...
09/20/1983
4344713Character overprinting method and apparatus in non-impact printers
A character overprinting apparatus and method for overprinting in a laser non-impact printer is disclosed. Control bits are generated and assigned to data words transmitted from a host system. An underline control bit identifies whether the associated dat...
08/17/1982
4323315Electronic typewriter with display device
An electronic typewriter having a display device which shows just the last entered characters of a printing line. The typewriter comprises a selector for an immediate typing mode of the entered character, a line/line mode in which each line is set up in m...
04/06/1982
4129075Line printer
Line printer having a plurality of coaxially arranged rotatable printing rings each bearing a series of characters to selectively effect printing on a paper and a platen movable toward in contact with and away from the printing rings so as to effect print...
12/12/1978
 
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