Title:
Internal prophylactic
Document Type and Number:
United States Patent 3373746
Inventors:
Publication Date:
03/19/1968
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Referenced by:
Export Citation:
Primary Class:
Other Classes:
604/369, 604/358, 128/842, 128/885
International Classes:
A61F6/02; A61F6/00
US Patent References:
Foreign References:
| DE352014C | ||||
| DE504554C |