Floor drain cover
United States Patent 2928419
US Patent References:
/0570543.html
- - 0570543
/0602332.html
- - 0602332
/0608207.html
- - 0608207
/1052363.html
- - 1052363
Renforcing means for flexible couplings of pipe lines
- - 1625684
/0570543.html
- - 0570543
/0602332.html
- - 0602332
/0608207.html
- - 0608207
/1052363.html
- - 1052363
Renforcing means for flexible couplings of pipe lines
- - 1625684
Inventors:
Kruse, Carl M.
Publication Date:
03/15/1960
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Assignee:
Kruse, Carl M.
Primary Class:
Other Classes:
137/593, 285/191
International Classes:
E03F5/042; E03F5/04
US Patent References: