Inventor
NEIFER DON ALBERT
US3 patents
Patents
3 patentsUS6233894B1May 22, 2001
Guardrail system for an apparatus movable along a roof structure
OWENS CORNING FIBERGLAS TECH10 citations67
US6195958B1Mar 6, 2001
Apparatus for propelling a carriage along the length of purlins of a roof structure
OWENS CORNING FIBERGLAS TECH13 citations66
US6101782AAug 15, 2000
Electrical controller for roofing apparatus
OWENS CORNING FIBERGLAS TECH6 citations54