Inventor
COTTEN ROGER C
US5 patents
⚠️ This page may combine multiple inventors who share the name “COTTEN ROGER C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
COTTEN ROGER C
4 patentsUS4152817AMay 8, 1979
Method of joining plastic pipe to other pipe
COTTEN ROGER C21 citations78
US4140739AFeb 20, 1979
Method for making flanged tubing
COTTEN ROGER C23 citations78
US3994515ANov 30, 1976
Joinder of plastic pipe
COTTEN ROGER C24 citations78
US4175917ANov 27, 1979
Apparatus for forming integral tubing and washer
COTTEN ROGER C8 citations70