Inventor

CERRA RICHARD D

US2 patents

⚠️ This page may combine multiple inventors who share the name “CERRA RICHARD D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ALLEGHENY PAPER SHREDDERS CORP

1 patent

US7942353B2May 17, 2011

Adjustable screen for material destruction apparatus

ALLEGHENY PAPER SHREDDERS CORP25 citations82

WAGNER JOHN W

1 patent

US4862796ASep 5, 1989

Apparatus for crushing cans

WAGNER JOHN W8 citations70