October 9 ~
It’s a busy day at the patent office in 1855; Isaac Singer patents the sewing machine motor, Joshua Stoddard patents his calliope. Interested in applying for your own patent? Get the scoop @ your library.
The first generator at Boulder Dam begins transmitting electricity to Los Angeles, on this day in 1936. The name of the dam was later changed to Hoover Dam. Interested in electrical transmission? Find it @ your library.
It’s a busy day at the patent office in 1855; Isaac Singer patents the sewing machine motor, Joshua Stoddard patents his calliope. Interested in applying for your own patent? Get the scoop @ your library.
The first generator at Boulder Dam begins transmitting electricity to Los Angeles, on this day in 1936. The name of the dam was later changed to Hoover Dam. Interested in electrical transmission? Find it @ your library.
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