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Line-Lock Attachment for Type-Writing Machines.

Description: Patent for improvements in line-lock attachments for type-writing machines in which “it prevent the printing of one letter over another by effecting a locking of the key-levers when the carriage of the machine reaches the end of the line.” (Lines 26-29) Illustration is included.
Date: July 5, 1904
Creator: Parker, William A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Touch Regulating Attachment For Pianos

Description: Patent for a touch regulating attachment for pianos. This invention regulates the touch of the instrument to effect the tension or stiffness of the keys. Illustration included.
Date: March 29, 1904
Creator: Harriss, Langdon & Kendall, William H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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