APA (7th ed.) Citation

United States. Patent Office & ProQuest (Firm). (1922). [Patent Office, 1922]. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Patent Office and ProQuest (Firm). [Patent Office, 1922]. Washington: [publisher not identified], 1922.

MLA (9th ed.) Citation

United States. Patent Office and ProQuest (Firm). [Patent Office, 1922]. [publisher not identified], 1922.

Warning: These citations may not always be 100% accurate.