Flexible connector
United States Patent 2474690
US Patent References:
/0317157.html
- - 0317157

/0400958.html
- - 0400958

/0973901.html
- - 0973901

/1212685.html
- - 1212685

/1272678.html
- - 1272678


Inventors:
Robinson, Lawrence R.
Robinson, Kyle I.
Berger, Earl O.
Publication Date:
06/28/1949
View Patent Images:
Assignee:
Pittsburgh, Pipe Cleaner Compan
Primary Class:
Other Classes:
403/306, 403/286, 138/134, 138/178, 15/104.061, 138/131, 59/79.200
International Classes:
B08B9/04; B08B9/02
US Patent References:
1429146Universal power-transmitting element
2139702Plumber's appliance