Parte Rosa Knaus
Ruzica Knaus geb. Stankovic
Pessar
Paten 818236
Pessar
Patent 134013
Pessar
Patent 140016
Pessar
Patent 22044
Pessar
Patent 258709
Pessar aus porösem elastischem Material wie Schwammgummi
Patent 134736
Pessary
United States Patent Office: No. 547,625
Pessary