188292 - Improvement in Ear-Mufflers - Chester Greenwood

Chicago citation style
Department of Commerce. Patent and Trademark Office. (1975). 188292 - Improvement in Ear-Mufflers - Chester Greenwood. 1877-01-01/1877-12-31. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/7560382. (Accessed January 20, 2019.)
APA citation style
Department of Commerce. Patent and Trademark Office. (1975), (1877-01-01/1877-12-31) 188292 - Improvement in Ear-Mufflers - Chester Greenwood. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/7560382
MLA citation style
Department of Commerce. Patent and Trademark Office. (1975). Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/7560382>.
Note: These citations are programmatically generated and may be incomplete.