How to make inventions; or, Inventing as a science and an art (1893)
Thompson, Edward P · New York, D. Van Nostrand co · leaf 180
nceto benefit himself and others, after the monoply has been so longheld by another party. A similar case is found in time locks forsafes. A time lock is of no value if it can be opened by anysecret, before the time set. But suppose the clockwork stopsbefore that time. There should be secret means… … iiiiniiniiiiiiill^IllllllllfllllSS t I
Inventions
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
