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Inventor
ZIMMERMAN HOWARD A
2 patents
⚠️ This page may combine multiple inventors who share the name “ZIMMERMAN HOWARD A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CASE CORP
1 patent
US5212896A
May 25, 1993
Control system for a walk behind trencher machine
CASE CORP
32 citations
86
CASE CO J I
1 patent
US4377914A
Mar 29, 1983
Vertical lift and blade control mechanism for cable plows
CASE CO J I
4 citations
58