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Bookbinding (open access)

Bookbinding

This is a letter patent for the bookbinding invention as a means for holding books, pamphlets, catalogs, and other similar paper materials together. The purpose of this invention is to make it possible to place additional material inside the same covers, and with the original contents of a book without breaking or tearing the binding.
Date: June 22, 1911
Creator: Robinson, Edward K.
System: The Portal to Texas History
Coin Controlled Machine (open access)

Coin Controlled Machine

Patent for a coin controlled machine. This invention is designed to accept coins of proper values and operation is dependent on predetermined portion of the im pressed surface of the coin. Illustrations included.
Date: September 6, 1910
Creator: Scheble, Eugene S. & Rast, Felix Q.
System: The Portal to Texas History