Recently Patented Inventions

1906 Scientific American  
JANUARY Scientific American 97 RECENTLY PATENTED INVENTIONS. ElectrIcal Device •• at its ends, the hook of one end engaging the rTIHf ftlM� �� ��fl� ��i ii ii� � edge of a rail tlange, the opposite hook em-I
doi:10.1038/scientificamerican01271906-97 fatcat:mv5gzekepjeejnbkf6ensciopy