P

Inventor

WILLMANN ERICH

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

SIMPLEX TIME RECORDER CO

3 patents
US4063071ADec 13, 1977

Flexitime recorder

SIMPLEX TIME RECORDER CO5 citations55
US3974362AAug 10, 1976

Flexitime recorder

SIMPLEX TIME RECORDER CO5 citations55
US3952313AApr 20, 1976

Time recorder

SIMPLEX TIME RECORDER CO2 citations55

SIMPLEX TIME RECORDER

1 patent
US4041503AAug 9, 1977

Attendance time recorder

SIMPLEX TIME RECORDER1 citations40