Finding Aids

The North Brothers Manufacturing Company was an iron and brass foundry that developed an expertise in manufacturing metal kitchen appliances. The records consist of a sample preserved at the time of the company's transfer to The Stanley Works in 1946. The bulk of the records concerns the manufacture of appliances, largely ice cream freezers. In particular, the records relate to the assignment and registration of patents and trademarks under which they were manufactured and sold.

Samuel Stockton White (1822-1879) was a Philadelphia dentist who, in the mid-1840s, began manufacturing porcelain teeth using feldspar. Within the next decades, the company he founded had become the largest manufacturer of dental instruments in the world. The S.S. White Dental Manufacturing Company records largely relate to patents and the manufacture of dental equipment. The company maintained its competitive edge by constant improvement and innovation and was thus dependent upon patent protection.

The Singer Company, once the world's leading producer of sewing machines, was the successor to I.M. Singer & Co., established in 1851. The records of The Singer Company comprise a group of materials from its Trademark Department that were collected by a former employee.