P

Inventor

CRAWFORD ROY P

US4 patents
⚠️ This page may combine multiple inventors who share the name “CRAWFORD ROY P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IBM

3 patents
US4585397AApr 29, 1986

Dual bellows pump with drive circuit through bellows

IBM60 citations94
US4334656AJun 15, 1982

Automatic tape threading apparatus for magnetic tape transports

IBM30 citations90
US5328270AJul 12, 1994

Hydrodynamic pump

IBM30 citations85

BENDER DAVID L

1 patent
US8257496B1Sep 4, 2012

Crucible weight measurement system for controlling feedstock introduction in Czochralski crystal growth

BENDER DAVID L9 citations81