Maxim vs Hiram Maxim

Maxim and Hiram Maxim both are nouns.

Word	Noun	Adjective	Verb	Adverb
Maxim	Yes	No	No	No
Hiram Maxim	Yes	No	No	No

As nouns, Maxim and Hiram Maxim are synonyms defined as:

Maxim and Hiram Maxim: English inventor (born in the United States) who invented the Maxim gun that was used in World War I (1840-1916)

Other synonyms of Maxim include Sir Hiram Stevens Maxim.

Maxim (noun)	Hiram Maxim (noun)
English inventor (born in the United States) who invented the Maxim gun that was used in World War I (1840-1916)	English inventor (born in the United States) who invented the Maxim gun that was used in World War I (1840-1916)