Inventor

LAARHOVEN JOHANNES J

NL2 patents

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

KALRIIS NIELSEN ERLING

1 patent

US4743422AMay 10, 1988

Method for manufacturing a sealing body for a pipe joint

KALRIIS NIELSEN ERLING42 citations80

WAVIN BV

1 patent

US4492867AJan 8, 1985

Method of and apparatus for determining the state of ageing of plastic products

WAVIN BV10 citations67