Measuring – testing – or signalling instruments – Security or signal instrument or casing – Elevator signal or call unit
Patent
1996-09-13
1999-10-26
Jackson, Marcus A.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Elevator signal or call unit
1005
Patent
active
D04157079
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patent: D317137 (1991-05-01), Kulikowski et al.
patent: D339543 (1993-09-01), Martin
patent: D349360 (1994-08-01), Gonsior
Handbook of Pictorial Symbols. Rudolf Modley. 1976, p. 59, 80 prior to Sep. 13, 1996.
SKYLTAR. p. 330 prior to Sep. 13, 1996.
MONSTERREGISTERBLAD 16711 prior to Sep. 13, 1996.
Gallagher Michael P.
Mach Ellen M.
Norland Leif A.
Crown Equipment Corporation
Jackson Marcus A.
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