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
United States Patent Office: No. 29,408
Physicians' Diagnostic Laboratory